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CLN: remove Index._to_embed #22879

Merged
merged 3 commits into from
Oct 2, 2018
Merged

CLN: remove Index._to_embed #22879

merged 3 commits into from
Oct 2, 2018

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jorisvandenbossche
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_to_embed's dtype keyword was not used, and apart from that it was a trivial return of the values, and only used in to_series, so doesn't seem worth to have.

@pep8speaks
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Hello @jorisvandenbossche! Thanks for submitting the PR.

@jorisvandenbossche jorisvandenbossche added this to the 0.24.0 milestone Sep 28, 2018
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codecov bot commented Sep 28, 2018

Codecov Report

Merging #22879 into master will increase coverage by <.01%.
The diff coverage is 100%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master   #22879      +/-   ##
==========================================
+ Coverage   92.18%   92.19%   +<.01%     
==========================================
  Files         169      169              
  Lines       50830    50819      -11     
==========================================
- Hits        46860    46852       -8     
+ Misses       3970     3967       -3
Flag Coverage Δ
#multiple 90.6% <100%> (ø) ⬆️
#single 42.37% <25%> (-0.01%) ⬇️
Impacted Files Coverage Δ
pandas/core/indexes/period.py 93.66% <ø> (+0.17%) ⬆️
pandas/core/indexes/datetimes.py 95.77% <100%> (+0.11%) ⬆️
pandas/core/indexes/base.py 96.44% <100%> (+0.04%) ⬆️

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update e45a6c1...f7a0aaf. Read the comment docs.

@jorisvandenbossche
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@TomAugspurger or @jreback quick sanity check?
(remaining failure is parquet s3)

@TomAugspurger TomAugspurger merged commit 1d9f76c into pandas-dev:master Oct 2, 2018
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Thanks!

TomAugspurger added a commit to TomAugspurger/pandas that referenced this pull request Oct 9, 2018
@TomAugspurger
Squashed commit of the following:
959cd72 
commit 23e5cfc
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:10:41 2018 -0500

    Use ._tshift internally for datetimelike ops

    In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

    Index.shift has a different meaning from ExtensionArray.shift.

    - Index.shift pointwise shifts each element by some amount
    - ExtensionArray.shift shits the *position* of each value in the array
      padding the end with NA

    This is going to get confusing. This PR tries to avoid some of that by
    internally using a new `_tshift` method (time-shift) when we want to do pointwise
    shifting of each value. Places that know they want that behavior (like in the
    datetimelike ops) should use that.

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test
TomAugspurger added a commit to TomAugspurger/pandas that referenced this pull request Oct 9, 2018
@TomAugspurger
Squashed commit of the following:
b66f617 
commit bccfc3f
Merge: d65980e 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:47:48 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit d65980e
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:46:38 2018 -0500

    typo

commit e5c61fc
Merge: d7a8e1b 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:59 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit d7a8e1b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:56 2018 -0500

    Fixed

commit 598cc62
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:32:22 2018 -0500

    doc note

commit 83db05c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:28:52 2018 -0500

    updates

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit f07ab80
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:22:27 2018 -0500

    str, bytes

commit 8a8bdb0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:40:59 2018 -0500

    import at top

commit 99bafdd
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:38:12 2018 -0500

    Update type for PeriodDtype

    Removed unused IntervalDtypeType

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test
TomAugspurger added a commit to TomAugspurger/pandas that referenced this pull request Oct 9, 2018
@TomAugspurger
Squashed commit of the following:
ff7c06c 
commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit ee80803
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Wed Oct 3 08:25:44 2018 -0700

     BUG: Correctly weekly resample over DST (pandas-dev#22941)

    * test resample fix

    * move the localization until needed

    * BUG: Correctly weekly resample over DST

    * Move whatsnew to new section

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test
TomAugspurger added a commit to TomAugspurger/pandas that referenced this pull request Oct 9, 2018
@TomAugspurger
Squashed commit of the following:
c2d57bd 
commit 7714e79
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 10:13:06 2018 -0500

    Always return ndarray

commit 1921c6f
Merge: 01f7366 fea27f0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 09:50:30 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 01f7366
Merge: 5372134 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:50:28 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 5372134
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:35:07 2018 -0500

    fixed move

commit ce1a3c6
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:32:11 2018 -0500

    fixed move

commit b9c7e4b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:28:57 2018 -0500

    remove old note

commit a4a2933
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:24:48 2018 -0500

    handle test

commit be63feb
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:19:17 2018 -0500

    move test

commit 0eef0cf
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:18:18 2018 -0500

    move back

commit 2183f7b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:17:28 2018 -0500

    api

commit 85fc5d8
Merge: 9059c0d 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:15:52 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 9059c0d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:33:15 2018 -0500

    Note

commit 0c53f08
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:30:54 2018 -0500

    Imports

commit ce94bf9
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:28:16 2018 -0500

    Moves

commit fdd43c4
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:26:09 2018 -0500

    Closes pandas-dev#22850

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test
TomAugspurger added a commit to TomAugspurger/pandas that referenced this pull request Oct 9, 2018
@TomAugspurger
Squashed commit of the following:
fbde770 
commit bccfc3f
Merge: d65980e 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:47:48 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit d65980e
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:46:38 2018 -0500

    typo

commit e5c61fc
Merge: d7a8e1b 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:59 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit d7a8e1b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:56 2018 -0500

    Fixed

commit 598cc62
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:32:22 2018 -0500

    doc note

commit 83db05c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:28:52 2018 -0500

    updates

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit f07ab80
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:22:27 2018 -0500

    str, bytes

commit 8a8bdb0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:40:59 2018 -0500

    import at top

commit 99bafdd
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:38:12 2018 -0500

    Update type for PeriodDtype

    Removed unused IntervalDtypeType

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test
Merge branch 'datetimelike-tshift' into ea-period
jreback pushed a commit that referenced this pull request Oct 25, 2018
@TomAugspurger @jreback
REF: Make PeriodArray an ExtensionArray (#22862)
ed29430 
* WIP: PeriodArray

* WIP

* remove debug

* Just moves

* PeriodArray.shift definition

* _data type

* clean

* accessor wip

* some more wip

* tshift, shift

* Arithmetic

* repr changes

* wip

* freq setter

* Added disabled ops

* copy

* Support concat

* object ctor

* Updates

* lint

* lint

* wip

* more wip

* array-setitem

* wip

* wip

* Use ._tshift internally for datetimelike ops

In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

Index.shift has a different meaning from ExtensionArray.shift.

- Index.shift pointwise shifts each element by some amount
- ExtensionArray.shift shits the *position* of each value in the array
  padding the end with NA

This is going to get confusing. This PR tries to avoid some of that by
internally using a new `_tshift` method (time-shift) when we want to do pointwise
shifting of each value. Places that know they want that behavior (like in the
datetimelike ops) should use that.

* deep

* Squashed commit of the following:

commit 23e5cfc
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:10:41 2018 -0500

    Use ._tshift internally for datetimelike ops

    In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

    Index.shift has a different meaning from ExtensionArray.shift.

    - Index.shift pointwise shifts each element by some amount
    - ExtensionArray.shift shits the *position* of each value in the array
      padding the end with NA

    This is going to get confusing. This PR tries to avoid some of that by
    internally using a new `_tshift` method (time-shift) when we want to do pointwise
    shifting of each value. Places that know they want that behavior (like in the
    datetimelike ops) should use that.

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (#22935)

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit bccfc3f
Merge: d65980e 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:47:48 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (#22948)

commit d65980e
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:46:38 2018 -0500

    typo

commit e5c61fc
Merge: d7a8e1b 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:59 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit d7a8e1b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:56 2018 -0500

    Fixed

commit 598cc62
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:32:22 2018 -0500

    doc note

commit 83db05c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:28:52 2018 -0500

    updates

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (#22935)

commit f07ab80
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:22:27 2018 -0500

    str, bytes

commit 8a8bdb0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:40:59 2018 -0500

    import at top

commit 99bafdd
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:38:12 2018 -0500

    Update type for PeriodDtype

    Removed unused IntervalDtypeType

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* fixup

* The rest of the EA tests

* docs

* rename to time_shift

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit ee80803
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Wed Oct 3 08:25:44 2018 -0700

     BUG: Correctly weekly resample over DST (#22941)

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    * move the localization until needed

    * BUG: Correctly weekly resample over DST

    * Move whatsnew to new section

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

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commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

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commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (#22958)

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Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (#20074)

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Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
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    CI: change windows vm image (#22948)

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Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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    Fixup

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Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

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Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (#22935)

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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    BUG: divmod return type

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 7714e79
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 10:13:06 2018 -0500

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Merge: 01f7366 fea27f0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 09:50:30 2018 -0500

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Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
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Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

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    * docstring

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commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (#20074)

commit 01f7366
Merge: 5372134 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:50:28 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (#22948)

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Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:35:07 2018 -0500

    fixed move

commit ce1a3c6
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:32:11 2018 -0500

    fixed move

commit b9c7e4b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:28:57 2018 -0500

    remove old note

commit a4a2933
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:24:48 2018 -0500

    handle test

commit be63feb
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:19:17 2018 -0500

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commit 0eef0cf
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:18:18 2018 -0500

    move back

commit 2183f7b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:17:28 2018 -0500

    api

commit 85fc5d8
Merge: 9059c0d 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:15:52 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (#22935)

commit 9059c0d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:33:15 2018 -0500

    Note

commit 0c53f08
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:30:54 2018 -0500

    Imports

commit ce94bf9
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:28:16 2018 -0500

    Moves

commit fdd43c4
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:26:09 2018 -0500

    Closes #22850

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

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commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

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commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

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Date:   Wed Oct 3 13:21:33 2018 -0500

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commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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commit 35d4213
Merge: 0671e7d ee80803
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Date:   Wed Oct 3 13:11:05 2018 -0500

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Date:   Tue Oct 2 11:10:42 2018 -0500

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Merge: c92a4a8 1d9f76c
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Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

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commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

* fixed merge conflict

* Handle divmod test

* extension tests passing

* Squashed commit of the following:

commit c9d6e89
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Thu Oct 4 08:34:22 2018 -0500

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commit 95d5cbf
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Thu Oct 4 08:22:17 2018 -0500

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commit 4e9b7f0
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commit cc2bfc8
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Date:   Thu Oct 4 08:15:46 2018 -0500

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commit fe67b94
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:55:09 2018 -0500

    Update type for PeriodDtype / DatetimeTZDtype / IntervalDtype (#22938)

commit b12e5ba
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:30:29 2018 -0500

    Safer is dtype (#22975)

commit c19c805
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:27:54 2018 -0500

    Catch Exception in combine (#22936)

commit d553ab3
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:24:06 2018 +0200

    TST: Fixturize series/test_combine_concat.py (#22964)

commit 4c78b97
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Date:   Thu Oct 4 13:23:39 2018 +0200

    TST: Fixturize series/test_constructors.py (#22965)

commit 45d3bb7
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:23:20 2018 +0200

    TST: Fixturize series/test_datetime_values.py (#22966)

commit f1a22ff
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:22:21 2018 +0200

    TST: Fixturize series/test_dtypes.py (#22967)

commit abf68fd
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Date:   Thu Oct 4 13:21:45 2018 +0200

    TST: Fixturize series/test_io.py (#22972)

commit e6b0c29
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Date:   Thu Oct 4 13:20:46 2018 +0200

    TST: Fixturize series/test_missing.py (#22973)

commit 9b405b8
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Thu Oct 4 13:16:28 2018 +0200

    CLN: values is required argument in _shallow_copy_with_infer (#22983)

commit c282e31
Author: h-vetinari <33685575+h-vetinari@users.noreply.github.com>
Date:   Thu Oct 4 03:34:35 2018 +0200

    Fix ASV import error (#22978)

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

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commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

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commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

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commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

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Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

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commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

* merge conflict

* wip

* indexes passing

* op names

* extension, arrays passing

* fixup

* lint

* Fixed to_timestamp

* Same error message for index, series

* Fix freq handling in to_timestamp

* dtype update

* accept kwargs

* fixups

* updates

* explicit

* add to assert

* wip period_array

* wip period_array

* order

* sort order

* test for hashing

* update

* lint

* boxing

* fix fixtures

* infer

* Remove seemingly unreachable code

* lint

* wip

* Updates for master

* simplify

* wip

* remove view

* simplify

* lint

* Removed add_comparison_methods

* xfail op

* remove some

* constructors

* Constructor cleanup

* misc fixups

* more xfails

* typo

* Added asi8

* Allow setting nan

* revert breaking docs

* Override _add_sub_int_array

* lint

* Update PeriodIndex._simple_new

* Clean up uses of .values, ._values, ._ndarray_values, ._data

* one more values

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* BUG: Raise for non-equal freq in take

* Punt on DataFrame.replace specializing

* lint

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* TST: _from_datetime64

* Fixups

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- pyarrow error
- py2 compat

* escape

* dtype

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* error catching

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* names
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* catch exception

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* Handle astype integer size

* Bump test coverage

* remove partial test

* close bracket

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* isort

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* lint

* ndarray_values -> asi8

* colocate ops

* refactor PeriodIndex.item

remove unused method

* return NotImplemented for Series / Index

* remove xpass

* release note

* types, use data

* remove ufunc xpass
tm9k1 pushed a commit to tm9k1/pandas that referenced this pull request Nov 19, 2018
@TomAugspurger @tm9k1
REF: Make PeriodArray an ExtensionArray (pandas-dev#22862)
6d220c7 
* WIP: PeriodArray

* WIP

* remove debug

* Just moves

* PeriodArray.shift definition

* _data type

* clean

* accessor wip

* some more wip

* tshift, shift

* Arithmetic

* repr changes

* wip

* freq setter

* Added disabled ops

* copy

* Support concat

* object ctor

* Updates

* lint

* lint

* wip

* more wip

* array-setitem

* wip

* wip

* Use ._tshift internally for datetimelike ops

In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

Index.shift has a different meaning from ExtensionArray.shift.

- Index.shift pointwise shifts each element by some amount
- ExtensionArray.shift shits the *position* of each value in the array
  padding the end with NA

This is going to get confusing. This PR tries to avoid some of that by
internally using a new `_tshift` method (time-shift) when we want to do pointwise
shifting of each value. Places that know they want that behavior (like in the
datetimelike ops) should use that.

* deep

* Squashed commit of the following:

commit 23e5cfc
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:10:41 2018 -0500

    Use ._tshift internally for datetimelike ops

    In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

    Index.shift has a different meaning from ExtensionArray.shift.

    - Index.shift pointwise shifts each element by some amount
    - ExtensionArray.shift shits the *position* of each value in the array
      padding the end with NA

    This is going to get confusing. This PR tries to avoid some of that by
    internally using a new `_tshift` method (time-shift) when we want to do pointwise
    shifting of each value. Places that know they want that behavior (like in the
    datetimelike ops) should use that.

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit bccfc3f
Merge: d65980e 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:47:48 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit d65980e
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:46:38 2018 -0500

    typo

commit e5c61fc
Merge: d7a8e1b 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:59 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit d7a8e1b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:56 2018 -0500

    Fixed

commit 598cc62
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:32:22 2018 -0500

    doc note

commit 83db05c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:28:52 2018 -0500

    updates

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit f07ab80
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:22:27 2018 -0500

    str, bytes

commit 8a8bdb0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:40:59 2018 -0500

    import at top

commit 99bafdd
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:38:12 2018 -0500

    Update type for PeriodDtype

    Removed unused IntervalDtypeType

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* fixup

* The rest of the EA tests

* docs

* rename to time_shift

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit ee80803
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Wed Oct 3 08:25:44 2018 -0700

     BUG: Correctly weekly resample over DST (pandas-dev#22941)

    * test resample fix

    * move the localization until needed

    * BUG: Correctly weekly resample over DST

    * Move whatsnew to new section

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 7714e79
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 10:13:06 2018 -0500

    Always return ndarray

commit 1921c6f
Merge: 01f7366 fea27f0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 09:50:30 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 01f7366
Merge: 5372134 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:50:28 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 5372134
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:35:07 2018 -0500

    fixed move

commit ce1a3c6
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:32:11 2018 -0500

    fixed move

commit b9c7e4b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:28:57 2018 -0500

    remove old note

commit a4a2933
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:24:48 2018 -0500

    handle test

commit be63feb
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:19:17 2018 -0500

    move test

commit 0eef0cf
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:18:18 2018 -0500

    move back

commit 2183f7b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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    api

commit 85fc5d8
Merge: 9059c0d 1d9f76c
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Date:   Tue Oct 2 11:15:52 2018 -0500

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commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 9059c0d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:33:15 2018 -0500

    Note

commit 0c53f08
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:30:54 2018 -0500

    Imports

commit ce94bf9
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:28:16 2018 -0500

    Moves

commit fdd43c4
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:26:09 2018 -0500

    Closes pandas-dev#22850

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

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Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

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commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

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commit 7ef697c
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commit 35d4213
Merge: 0671e7d ee80803
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Date:   Wed Oct 3 13:11:05 2018 -0500

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Date:   Tue Oct 2 11:10:42 2018 -0500

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Date:   Tue Oct 2 10:58:43 2018 -0500

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commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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* Handle divmod test

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commit c9d6e89
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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commit fe67b94
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:55:09 2018 -0500

    Update type for PeriodDtype / DatetimeTZDtype / IntervalDtype (pandas-dev#22938)

commit b12e5ba
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Date:   Thu Oct 4 06:30:29 2018 -0500

    Safer is dtype (pandas-dev#22975)

commit c19c805
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:27:54 2018 -0500

    Catch Exception in combine (pandas-dev#22936)

commit d553ab3
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:24:06 2018 +0200

    TST: Fixturize series/test_combine_concat.py (pandas-dev#22964)

commit 4c78b97
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Date:   Thu Oct 4 13:23:39 2018 +0200

    TST: Fixturize series/test_constructors.py (pandas-dev#22965)

commit 45d3bb7
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commit f1a22ff
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    TST: Fixturize series/test_dtypes.py (pandas-dev#22967)

commit abf68fd
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commit 9b405b8
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commit c282e31
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commit 11a0d93
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Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

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commit 2247461
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Date:   Wed Oct 3 13:29:29 2018 -0500

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Date:   Wed Oct 3 13:21:33 2018 -0500

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commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
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Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 0671e7d
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Date:   Tue Oct 2 11:10:42 2018 -0500

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commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

* merge conflict

* wip

* indexes passing

* op names

* extension, arrays passing

* fixup

* lint

* Fixed to_timestamp

* Same error message for index, series

* Fix freq handling in to_timestamp

* dtype update

* accept kwargs

* fixups

* updates

* explicit

* add to assert

* wip period_array

* wip period_array

* order

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* lint

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* simplify

* wip

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* simplify

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* xfail op

* remove some

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* misc fixups

* more xfails

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* Allow setting nan

* revert breaking docs

* Override _add_sub_int_array

* lint

* Update PeriodIndex._simple_new

* Clean up uses of .values, ._values, ._ndarray_values, ._data

* one more values

* remove xfails

* Fixed freq handling in _shallow_copy with a freq

* test updates

* API: Keep PeriodIndex.values an ndarray

* BUG: Raise for non-equal freq in take

* Punt on DataFrame.replace specializing

* lint

* fixed xfail message

* TST: _from_datetime64

* Fixups

- Perf in period_array
- pyarrow error
- py2 compat

* escape

* dtype

* revert and unxfail values

* error catching

* isort

* Avoid PeriodArray.values

* clarify _box_func usage

* TST: unxfail ops tests

* Avoid use of .values

* __setitem__ type

* Misc cleanups

* docstring on PeriodArray
* examples for period_array
* remove _box_values_as_index
* names
* object_dtype
* use __sub__

* lint

* API: remove ordinal from period_array

* catch exception

* misc cleanup

* Handle astype integer size

* Bump test coverage

* remove partial test

* close bracket

* change the test

* isort

* consistent _data

* lint

* ndarray_values -> asi8

* colocate ops

* refactor PeriodIndex.item

remove unused method

* return NotImplemented for Series / Index

* remove xpass

* release note

* types, use data

* remove ufunc xpass
Pingviinituutti pushed a commit to Pingviinituutti/pandas that referenced this pull request Feb 28, 2019
@TomAugspurger @Pingviinituutti
REF: Make PeriodArray an ExtensionArray (pandas-dev#22862)
af3f134 
* WIP: PeriodArray

* WIP

* remove debug

* Just moves

* PeriodArray.shift definition

* _data type

* clean

* accessor wip

* some more wip

* tshift, shift

* Arithmetic

* repr changes

* wip

* freq setter

* Added disabled ops

* copy

* Support concat

* object ctor

* Updates

* lint

* lint

* wip

* more wip

* array-setitem

* wip

* wip

* Use ._tshift internally for datetimelike ops

In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

Index.shift has a different meaning from ExtensionArray.shift.

- Index.shift pointwise shifts each element by some amount
- ExtensionArray.shift shits the *position* of each value in the array
  padding the end with NA

This is going to get confusing. This PR tries to avoid some of that by
internally using a new `_tshift` method (time-shift) when we want to do pointwise
shifting of each value. Places that know they want that behavior (like in the
datetimelike ops) should use that.

* deep

* Squashed commit of the following:

commit 23e5cfc
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:10:41 2018 -0500

    Use ._tshift internally for datetimelike ops

    In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

    Index.shift has a different meaning from ExtensionArray.shift.

    - Index.shift pointwise shifts each element by some amount
    - ExtensionArray.shift shits the *position* of each value in the array
      padding the end with NA

    This is going to get confusing. This PR tries to avoid some of that by
    internally using a new `_tshift` method (time-shift) when we want to do pointwise
    shifting of each value. Places that know they want that behavior (like in the
    datetimelike ops) should use that.

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit bccfc3f
Merge: d65980e 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:47:48 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit d65980e
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:46:38 2018 -0500

    typo

commit e5c61fc
Merge: d7a8e1b 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:59 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit d7a8e1b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:56 2018 -0500

    Fixed

commit 598cc62
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:32:22 2018 -0500

    doc note

commit 83db05c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:28:52 2018 -0500

    updates

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit f07ab80
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:22:27 2018 -0500

    str, bytes

commit 8a8bdb0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:40:59 2018 -0500

    import at top

commit 99bafdd
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:38:12 2018 -0500

    Update type for PeriodDtype

    Removed unused IntervalDtypeType

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* fixup

* The rest of the EA tests

* docs

* rename to time_shift

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit ee80803
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Wed Oct 3 08:25:44 2018 -0700

     BUG: Correctly weekly resample over DST (pandas-dev#22941)

    * test resample fix

    * move the localization until needed

    * BUG: Correctly weekly resample over DST

    * Move whatsnew to new section

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

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    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 7714e79
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 10:13:06 2018 -0500

    Always return ndarray

commit 1921c6f
Merge: 01f7366 fea27f0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 09:50:30 2018 -0500

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commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 01f7366
Merge: 5372134 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:50:28 2018 -0500

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commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 5372134
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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    fixed move

commit ce1a3c6
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:32:11 2018 -0500

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commit b9c7e4b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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commit a4a2933
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:24:48 2018 -0500

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Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:19:17 2018 -0500

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commit 0eef0cf
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Date:   Tue Oct 2 11:18:18 2018 -0500

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commit 2183f7b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
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    api

commit 85fc5d8
Merge: 9059c0d 1d9f76c
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Date:   Tue Oct 2 11:15:52 2018 -0500

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Date:   Tue Oct 2 17:11:11 2018 +0200

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    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 9059c0d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:33:15 2018 -0500

    Note

commit 0c53f08
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:30:54 2018 -0500

    Imports

commit ce94bf9
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:28:16 2018 -0500

    Moves

commit fdd43c4
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:26:09 2018 -0500

    Closes pandas-dev#22850

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

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commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

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commit fe67b94
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
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    Update type for PeriodDtype / DatetimeTZDtype / IntervalDtype (pandas-dev#22938)

commit b12e5ba
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Date:   Thu Oct 4 06:30:29 2018 -0500

    Safer is dtype (pandas-dev#22975)

commit c19c805
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:27:54 2018 -0500

    Catch Exception in combine (pandas-dev#22936)

commit d553ab3
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Date:   Thu Oct 4 13:24:06 2018 +0200

    TST: Fixturize series/test_combine_concat.py (pandas-dev#22964)

commit 4c78b97
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    TST: Fixturize series/test_constructors.py (pandas-dev#22965)

commit 45d3bb7
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commit f1a22ff
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commit abf68fd
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commit 9b405b8
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commit c282e31
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    typerror

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    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

* merge conflict

* wip

* indexes passing

* op names

* extension, arrays passing

* fixup

* lint

* Fixed to_timestamp

* Same error message for index, series

* Fix freq handling in to_timestamp

* dtype update

* accept kwargs

* fixups

* updates

* explicit

* add to assert

* wip period_array

* wip period_array

* order

* sort order

* test for hashing

* update

* lint

* boxing

* fix fixtures

* infer

* Remove seemingly unreachable code

* lint

* wip

* Updates for master

* simplify

* wip

* remove view

* simplify

* lint

* Removed add_comparison_methods

* xfail op

* remove some

* constructors

* Constructor cleanup

* misc fixups

* more xfails

* typo

* Added asi8

* Allow setting nan

* revert breaking docs

* Override _add_sub_int_array

* lint

* Update PeriodIndex._simple_new

* Clean up uses of .values, ._values, ._ndarray_values, ._data

* one more values

* remove xfails

* Fixed freq handling in _shallow_copy with a freq

* test updates

* API: Keep PeriodIndex.values an ndarray

* BUG: Raise for non-equal freq in take

* Punt on DataFrame.replace specializing

* lint

* fixed xfail message

* TST: _from_datetime64

* Fixups

- Perf in period_array
- pyarrow error
- py2 compat

* escape

* dtype

* revert and unxfail values

* error catching

* isort

* Avoid PeriodArray.values

* clarify _box_func usage

* TST: unxfail ops tests

* Avoid use of .values

* __setitem__ type

* Misc cleanups

* docstring on PeriodArray
* examples for period_array
* remove _box_values_as_index
* names
* object_dtype
* use __sub__

* lint

* API: remove ordinal from period_array

* catch exception

* misc cleanup

* Handle astype integer size

* Bump test coverage

* remove partial test

* close bracket

* change the test

* isort

* consistent _data

* lint

* ndarray_values -> asi8

* colocate ops

* refactor PeriodIndex.item

remove unused method

* return NotImplemented for Series / Index

* remove xpass

* release note

* types, use data

* remove ufunc xpass
Pingviinituutti pushed a commit to Pingviinituutti/pandas that referenced this pull request Feb 28, 2019
@TomAugspurger @Pingviinituutti
REF: Make PeriodArray an ExtensionArray (pandas-dev#22862)
9f791ad 
* WIP: PeriodArray

* WIP

* remove debug

* Just moves

* PeriodArray.shift definition

* _data type

* clean

* accessor wip

* some more wip

* tshift, shift

* Arithmetic

* repr changes

* wip

* freq setter

* Added disabled ops

* copy

* Support concat

* object ctor

* Updates

* lint

* lint

* wip

* more wip

* array-setitem

* wip

* wip

* Use ._tshift internally for datetimelike ops

In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

Index.shift has a different meaning from ExtensionArray.shift.

- Index.shift pointwise shifts each element by some amount
- ExtensionArray.shift shits the *position* of each value in the array
  padding the end with NA

This is going to get confusing. This PR tries to avoid some of that by
internally using a new `_tshift` method (time-shift) when we want to do pointwise
shifting of each value. Places that know they want that behavior (like in the
datetimelike ops) should use that.

* deep

* Squashed commit of the following:

commit 23e5cfc
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:10:41 2018 -0500

    Use ._tshift internally for datetimelike ops

    In preperation for PeriodArray / DatetimeArray / TimedeltaArray.

    Index.shift has a different meaning from ExtensionArray.shift.

    - Index.shift pointwise shifts each element by some amount
    - ExtensionArray.shift shits the *position* of each value in the array
      padding the end with NA

    This is going to get confusing. This PR tries to avoid some of that by
    internally using a new `_tshift` method (time-shift) when we want to do pointwise
    shifting of each value. Places that know they want that behavior (like in the
    datetimelike ops) should use that.

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit bccfc3f
Merge: d65980e 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:47:48 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit d65980e
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:46:38 2018 -0500

    typo

commit e5c61fc
Merge: d7a8e1b 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:59 2018 -0500

    Merge remote-tracking branch 'upstream/master' into period-dtype-type

commit d7a8e1b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:57:56 2018 -0500

    Fixed

commit 598cc62
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:32:22 2018 -0500

    doc note

commit 83db05c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:28:52 2018 -0500

    updates

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit f07ab80
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:22:27 2018 -0500

    str, bytes

commit 8a8bdb0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:40:59 2018 -0500

    import at top

commit 99bafdd
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:38:12 2018 -0500

    Update type for PeriodDtype

    Removed unused IntervalDtypeType

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* fixup

* The rest of the EA tests

* docs

* rename to time_shift

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit ee80803
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Wed Oct 3 08:25:44 2018 -0700

     BUG: Correctly weekly resample over DST (pandas-dev#22941)

    * test resample fix

    * move the localization until needed

    * BUG: Correctly weekly resample over DST

    * Move whatsnew to new section

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 7714e79
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 10:13:06 2018 -0500

    Always return ndarray

commit 1921c6f
Merge: 01f7366 fea27f0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 09:50:30 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit fea27f0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Wed Oct 3 08:49:44 2018 -0500

    CI: pin moto to 1.3.4 (pandas-dev#22959)

commit 15d32bb
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 04:32:35 2018 -0700

    [CLN] Dispatch (some) Frame ops to Series, avoiding _data.eval (pandas-dev#22019)

    * avoid casting to object dtype in mixed-type frames

    * Dispatch to Series ops in _combine_match_columns

    * comment

    * docstring

    * flake8 fixup

    * dont bother with try_cast_result

    * revert non-central change

    * simplify

    * revert try_cast_results

    * revert non-central changes

    * Fixup typo syntaxerror

    * simplify assertion

    * use dispatch_to_series in combine_match_columns

    * Pass unwrapped op where appropriate

    * catch correct error

    * whatsnew note

    * comment

    * whatsnew section

    * remove unnecessary tester

    * doc fixup

commit 3e3256b
Author: alimcmaster1 <alimcmaster1@gmail.com>
Date:   Wed Oct 3 12:23:22 2018 +0100

    Allow passing a mask to NanOps (pandas-dev#22865)

commit e756e99
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Wed Oct 3 02:19:27 2018 -0700

    CLN: Use is_period_dtype instead of ABCPeriodIndex checks (pandas-dev#22958)

commit 03181f0
Author: Wenhuan <lixx0880@gmail.com>
Date:   Wed Oct 3 15:28:07 2018 +0800

    BUG: fix Series(extension array) + extension array values addition (pandas-dev#22479)

commit 04ea51d
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Wed Oct 3 09:24:36 2018 +0200

    CLN: small clean-up of IntervalIndex (pandas-dev#22956)

commit b0f9a10
Author: Tony Tao <34781056+tonytao2012@users.noreply.github.com>
Date:   Tue Oct 2 19:01:08 2018 -0500

    DOC GH22893 Fix docstring of groupby in pandas/core/generic.py (pandas-dev#22920)

commit 08ecba8
Author: jbrockmendel <jbrockmendel@gmail.com>
Date:   Tue Oct 2 14:22:53 2018 -0700

    BUG: fix DataFrame+DataFrame op with timedelta64 dtype (pandas-dev#22696)

commit c44bad2
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:16:25 2018 -0400

    CLN GH22873 Replace base excepts in pandas/core (pandas-dev#22901)

commit 8e749a3
Author: Pamela Wu <pambot@users.noreply.github.com>
Date:   Tue Oct 2 17:14:48 2018 -0400

    CLN GH22874 replace bare excepts in pandas/io/pytables.py (pandas-dev#22919)

commit 1102a33
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 22:31:36 2018 +0200

    DOC/CLN: clean-up shared_docs in generic.py (pandas-dev#20074)

commit 01f7366
Merge: 5372134 9caf048
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 13:50:28 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 9caf048
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 13:25:22 2018 -0500

    CI: change windows vm image (pandas-dev#22948)

commit 5372134
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:35:07 2018 -0500

    fixed move

commit ce1a3c6
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:32:11 2018 -0500

    fixed move

commit b9c7e4b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:28:57 2018 -0500

    remove old note

commit a4a2933
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:24:48 2018 -0500

    handle test

commit be63feb
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:19:17 2018 -0500

    move test

commit 0eef0cf
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:18:18 2018 -0500

    move back

commit 2183f7b
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:17:28 2018 -0500

    api

commit 85fc5d8
Merge: 9059c0d 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:15:52 2018 -0500

    Merge remote-tracking branch 'upstream/master' into combine-exception

commit 1d9f76c
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Tue Oct 2 17:11:11 2018 +0200

    CLN: remove Index._to_embed (pandas-dev#22879)

    * CLN: remove Index._to_embed

    * pep8

commit 6247da0
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Tue Oct 2 08:50:41 2018 -0500

    Provide default implementation for `data_repated` (pandas-dev#22935)

commit 9059c0d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:33:15 2018 -0500

    Note

commit 0c53f08
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:30:54 2018 -0500

    Imports

commit ce94bf9
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 06:28:16 2018 -0500

    Moves

commit fdd43c4
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 21:26:09 2018 -0500

    Closes pandas-dev#22850

commit 5ce06b5
Author: Matthew Roeschke <emailformattr@gmail.com>
Date:   Mon Oct 1 14:22:20 2018 -0700

     BUG: to_datetime preserves name of Index argument in the result (pandas-dev#22918)

    * BUG: to_datetime preserves name of Index argument in the result

    * correct test

* Squashed commit of the following:

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

* fixed merge conflict

* Handle divmod test

* extension tests passing

* Squashed commit of the following:

commit c9d6e89
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Thu Oct 4 08:34:22 2018 -0500

    xpass -> skip

commit 95d5cbf
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Thu Oct 4 08:22:17 2018 -0500

    typo, import

commit 4e9b7f0
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Thu Oct 4 08:18:40 2018 -0500

    doc update

commit cc2bfc8
Merge: 11a0d93 fe67b94
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Thu Oct 4 08:15:46 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit fe67b94
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:55:09 2018 -0500

    Update type for PeriodDtype / DatetimeTZDtype / IntervalDtype (pandas-dev#22938)

commit b12e5ba
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:30:29 2018 -0500

    Safer is dtype (pandas-dev#22975)

commit c19c805
Author: Tom Augspurger <TomAugspurger@users.noreply.github.com>
Date:   Thu Oct 4 06:27:54 2018 -0500

    Catch Exception in combine (pandas-dev#22936)

commit d553ab3
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:24:06 2018 +0200

    TST: Fixturize series/test_combine_concat.py (pandas-dev#22964)

commit 4c78b97
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:23:39 2018 +0200

    TST: Fixturize series/test_constructors.py (pandas-dev#22965)

commit 45d3bb7
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:23:20 2018 +0200

    TST: Fixturize series/test_datetime_values.py (pandas-dev#22966)

commit f1a22ff
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:22:21 2018 +0200

    TST: Fixturize series/test_dtypes.py (pandas-dev#22967)

commit abf68fd
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:21:45 2018 +0200

    TST: Fixturize series/test_io.py (pandas-dev#22972)

commit e6b0c29
Author: Anjali2019 <Anjali2019@users.noreply.github.com>
Date:   Thu Oct 4 13:20:46 2018 +0200

    TST: Fixturize series/test_missing.py (pandas-dev#22973)

commit 9b405b8
Author: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Date:   Thu Oct 4 13:16:28 2018 +0200

    CLN: values is required argument in _shallow_copy_with_infer (pandas-dev#22983)

commit c282e31
Author: h-vetinari <33685575+h-vetinari@users.noreply.github.com>
Date:   Thu Oct 4 03:34:35 2018 +0200

    Fix ASV import error (pandas-dev#22978)

commit 11a0d93
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:26:34 2018 -0500

    typerror

commit a0cd5e7
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 14:25:38 2018 -0500

    TypeError for Series

commit 2247461
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:29:29 2018 -0500

    Test op(Series[EA], EA])

commit c9fe5d3
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:21:33 2018 -0500

    make strict

commit 7ef697c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:14:52 2018 -0500

    Use super

commit 35d4213
Merge: 0671e7d ee80803
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Wed Oct 3 13:11:05 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit 0671e7d
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 11:10:42 2018 -0500

    Fixup

commit 1b4261f
Merge: c92a4a8 1d9f76c
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Tue Oct 2 10:58:43 2018 -0500

    Merge remote-tracking branch 'upstream/master' into ea-divmod

commit c92a4a8
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:56:15 2018 -0500

    Update old test

commit 52538fa
Author: Tom Augspurger <tom.w.augspurger@gmail.com>
Date:   Mon Oct 1 16:51:48 2018 -0500

    BUG: divmod return type

* merge conflict

* wip

* indexes passing

* op names

* extension, arrays passing

* fixup

* lint

* Fixed to_timestamp

* Same error message for index, series

* Fix freq handling in to_timestamp

* dtype update

* accept kwargs

* fixups

* updates

* explicit

* add to assert

* wip period_array

* wip period_array

* order

* sort order

* test for hashing

* update

* lint

* boxing

* fix fixtures

* infer

* Remove seemingly unreachable code

* lint

* wip

* Updates for master

* simplify

* wip

* remove view

* simplify

* lint

* Removed add_comparison_methods

* xfail op

* remove some

* constructors

* Constructor cleanup

* misc fixups

* more xfails

* typo

* Added asi8

* Allow setting nan

* revert breaking docs

* Override _add_sub_int_array

* lint

* Update PeriodIndex._simple_new

* Clean up uses of .values, ._values, ._ndarray_values, ._data

* one more values

* remove xfails

* Fixed freq handling in _shallow_copy with a freq

* test updates

* API: Keep PeriodIndex.values an ndarray

* BUG: Raise for non-equal freq in take

* Punt on DataFrame.replace specializing

* lint

* fixed xfail message

* TST: _from_datetime64

* Fixups

- Perf in period_array
- pyarrow error
- py2 compat

* escape

* dtype

* revert and unxfail values

* error catching

* isort

* Avoid PeriodArray.values

* clarify _box_func usage

* TST: unxfail ops tests

* Avoid use of .values

* __setitem__ type

* Misc cleanups

* docstring on PeriodArray
* examples for period_array
* remove _box_values_as_index
* names
* object_dtype
* use __sub__

* lint

* API: remove ordinal from period_array

* catch exception

* misc cleanup

* Handle astype integer size

* Bump test coverage

* remove partial test

* close bracket

* change the test

* isort

* consistent _data

* lint

* ndarray_values -> asi8

* colocate ops

* refactor PeriodIndex.item

remove unused method

* return NotImplemented for Series / Index

* remove xpass

* release note

* types, use data

* remove ufunc xpass
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@jorisvandenbossche @pep8speaks @TomAugspurger