Update psycopg2 to 2.8.3

[pyup-bot]

This PR updates psycopg2 from 2.6.2 to 2.8.3.

Changelog

2.8.3

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Added *interval_status* parameter to
`~psycopg2.extras.ReplicationCursor.start_replication()` method and other
facilities to send automatic replication keepalives at periodic intervals
(:ticket:`913`).
- Fixed namedtuples caching introduced in 2.8 (:ticket:`928`).

2.8.2

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Fixed `~psycopg2.extras.RealDictCursor` when there are repeated columns
(:ticket:`884`).
- Binary packages built with openssl 1.1.1b. Should fix concurrency problems
(:tickets:`543, 836`).

2.8.1

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Fixed `~psycopg2.extras.RealDictRow` modifiability (:ticket:`886`).
- Fixed "there's no async cursor" error polling a connection with no cursor
(:ticket:`887`).

2.8

-------------------------

New features:

- Added `~psycopg2.errors` module. Every PostgreSQL error is converted into
a specific exception class (:ticket:`682`).
- Added `~psycopg2.extensions.encrypt_password()` function (:ticket:`576`).
- Added `~psycopg2.extensions.BYTES` adapter to manage databases with mixed
encodings on Python 3 (:ticket:`835`).
- Added `~psycopg2.extensions.Column.table_oid` and
`~psycopg2.extensions.Column.table_column` attributes on `cursor.description`
items (:ticket:`661`).
- Added `connection.info` object to retrieve various PostgreSQL connection
information (:ticket:`726`).
- Added `~connection.get_native_connection()` to expose the raw ``PGconn``
structure to C extensions via Capsule (:ticket:`782`).
- Added `~connection.pgconn_ptr` and `~cursor.pgresult_ptr` to expose raw
C structures to Python and interact with libpq via ctypes (:ticket:`782`).
- `~psycopg2.sql.Identifier` can represent qualified names in SQL composition
(:ticket:`732`).
- Added `!ReplicationCursor`.\ `~psycopg2.extras.ReplicationCursor.wal_end`
attribute (:ticket:`800`).
- Added *fetch* parameter to `~psycopg2.extras.execute_values()` function
(:ticket:`813`).
- `!str()` on `~psycopg2.extras.Range` produces a human-readable representation
(:ticket:`773`).
- `~psycopg2.extras.DictCursor` and `~psycopg2.extras.RealDictCursor` rows
maintain columns order (:ticket:`177`).
- Added `~psycopg2.extensions.Diagnostics.severity_nonlocalized` attribute on
the `~psycopg2.extensions.Diagnostics` object (:ticket:`783`).
- More efficient `~psycopg2.extras.NamedTupleCursor` (:ticket:`838`).

Bug fixes:

- Fixed connections occasionally broken by the unrelated use of the
multiprocessing module (:ticket:`829`).
- Fixed async communication blocking if results are returned in different
chunks, e.g. with notices interspersed to the results (:ticket:`856`).
- Fixed adaptation of numeric subclasses such as `~enum.IntEnum`
(:ticket:`591`).

Other changes:

- Dropped support for Python 2.6, 3.2, 3.3.
- Dropped `psycopg1` module.
- Dropped deprecated `!register_tstz_w_secs()` (was previously a no-op).
- Dropped deprecated `!PersistentConnectionPool`. This pool class was mostly
designed to interact with Zope. Use `!ZPsycopgDA.pool` instead.
- Binary packages no longer installed by default. The 'psycopg2-binary'
package must be used explicitly.
- Dropped `!PSYCOPG_DISPLAY_SIZE` build parameter.
- Dropped support for mxDateTime as the default date and time adapter.
mxDatetime support continues to be available as an alternative to Python's
builtin datetime.
- No longer use 2to3 during installation for Python 2 & 3 compatibility. All
source files are now compatible with Python 2 & 3 as is.
- The `!psycopg2.test` package is no longer installed by ``python setup.py
install``.
- Wheel package compiled against OpenSSL 1.0.2r and PostgreSQL 11.2 libpq.

2.7.7

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Cleanup of the cursor results assignment code, which might have solved
double free and inconsistencies in concurrent usage (:tickets:`346, 384`).
- Wheel package compiled against OpenSSL 1.0.2q.

2.7.6.1

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Fixed binary package broken on OS X 10.12 (:ticket:`807`).
- Wheel package compiled against PostgreSQL 11.1 libpq.

2.7.6

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Close named cursors if exist, even if `~cursor.execute()` wasn't called
(:ticket:`746`).
- Fixed building on modern FreeBSD versions with Python 3.7 (:ticket:`755`).
- Fixed hang trying to :sql:`COPY` via `~cursor.execute()` in asynchronous
connections (:ticket:`781`).
- Fixed adaptation of arrays of empty arrays (:ticket:`788`).
- Fixed segfault accessing the connection's `~connection.readonly` and
`~connection.deferrable` attributes repeatedly (:ticket:`790`).
- `~psycopg2.extras.execute_values()` accepts `~psycopg2.sql.Composable`
objects (:ticket:`794`).
- `~psycopg2.errorcodes` map updated to PostgreSQL 11.
- Wheel package compiled against PostgreSQL 10.5 libpq and OpenSSL 1.0.2p.

2.7.5

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Allow non-ascii chars in namedtuple fields (regression introduced fixing
:ticket:`211`).
- Fixed adaptation of arrays of arrays of nulls (:ticket:`325`).
- Fixed building on Solaris 11 and derivatives such as SmartOS and illumos
(:ticket:`677`).
- Maybe fixed building on MSYS2 (as reported in :ticket:`658`).
- Allow string subclasses in connection and other places (:ticket:`679`).
- Don't raise an exception closing an unused named cursor (:ticket:`716`).
- Wheel package compiled against PostgreSQL 10.4 libpq and OpenSSL 1.0.2o.

2.7.4

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Moving away from installing the wheel package by default.
Packages installed from wheel raise a warning on import. Added package
``psycopg2-binary`` to install from wheel instead (:ticket:`543`).
- Convert fields names into valid Python identifiers in
`~psycopg2.extras.NamedTupleCursor` (:ticket:`211`).
- Fixed Solaris 10 support (:ticket:`532`).
- `cursor.mogrify()` can be called on closed cursors (:ticket:`579`).
- Fixed setting session characteristics in corner cases on autocommit
connections (:ticket:`580`).
- Fixed `~psycopg2.extras.MinTimeLoggingCursor` on Python 3 (:ticket:`609`).
- Fixed parsing of array of points as floats (:ticket:`613`).
- Fixed `~psycopg2.__libpq_version__` building with libpq >= 10.1
(:ticket:`632`).
- Fixed `~cursor.rowcount` after `~cursor.executemany()` with :sql:`RETURNING`
statements (:ticket:`633`).
- Fixed compatibility problem with pypy3 (:ticket:`649`).
- Wheel packages compiled against PostgreSQL 10.1 libpq and OpenSSL 1.0.2n.
- Wheel packages for Python 2.6 no more available (support dropped from
wheel building infrastructure).

2.7.3.2

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Wheel package compiled against PostgreSQL 10.0 libpq and OpenSSL 1.0.2l
(:tickets:`601, 602`).

2.7.3.1

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Dropped libresolv from wheel package to avoid incompatibility with
glibc 2.26 (wheels ticket 2).

2.7.3

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Restored default :sql:`timestamptz[]` typecasting to Python `!datetime`.
Regression introduced in Psycopg 2.7.2 (:ticket:`578`).

2.7.2

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Fixed inconsistent state in externally closed connections
(:tickets:`263, 311, 443`). Was fixed in 2.6.2 but not included in
2.7 by mistake.
- Fixed Python exceptions propagation in green callback (:ticket:`410`).
- Don't display the password in `connection.dsn` when the connection
string is specified as an URI (:ticket:`528`).
- Return objects with timezone parsing "infinity" :sql:`timestamptz`
(:ticket:`536`).
- Dropped dependency on VC9 runtime on Windows binary packages
(:ticket:`541`).
- Fixed segfault in `~connection.lobject()` when *mode*\=\ `!None`
(:ticket:`544`).
- Fixed `~connection.lobject()` keyword argument *lobject_factory*
(:ticket:`545`).
- Fixed `~psycopg2.extras.ReplicationCursor.consume_stream()`
*keepalive_interval* argument (:ticket:`547`).
- Maybe fixed random import error on Python 3.6 in multiprocess
environment (:ticket:`550`).
- Fixed random `!SystemError` upon receiving abort signal (:ticket:`551`).
- Accept `~psycopg2.sql.Composable` objects in
`~psycopg2.extras.ReplicationCursor.start_replication_expert()`
(:ticket:`554`).
- Parse intervals returned as microseconds from Redshift (:ticket:`558`).
- Added `~psycopg2.extras.Json` `!prepare()` method to consider connection
params when adapting (:ticket:`562`).
- `~psycopg2.errorcodes` map updated to PostgreSQL 10 beta 1.

2.7.1

^^^^^^^^^^^^^^^^^^^^^^^^^^^

- Ignore `!None` arguments passed to `~psycopg2.connect()` and
`~psycopg2.extensions.make_dsn()` (:ticket:`517`).
- OpenSSL upgraded from major version 0.9.8 to 1.0.2 in the Linux wheel
packages (:ticket:`518`).
- Fixed build with libpq versions < 9.3 (:ticket:`520`).

2.7

-------------------------

New features:

- Added `~psycopg2.sql` module to generate SQL dynamically (:ticket:`308`).
- Added :ref:`replication-support` (:ticket:`322`). Main authors are
Oleksandr Shulgin and Craig Ringer, who deserve a huge thank you.
- Added `~psycopg2.extensions.parse_dsn()` and
`~psycopg2.extensions.make_dsn()` functions (:tickets:`321, 363`).
`~psycopg2.connect()` now can take both *dsn* and keyword arguments, merging
them together.
- Added `~psycopg2.__libpq_version__` and
`~psycopg2.extensions.libpq_version()` to inspect the version of the
``libpq`` library the module was compiled/loaded with
(:tickets:`35, 323`).
- The attributes `~connection.notices` and `~connection.notifies` can be
customized replacing them with any object exposing an `!append()` method
(:ticket:`326`).
- Adapt network types to `ipaddress` objects when available. When not
enabled, convert arrays of network types to lists by default. The old `!Inet`
adapter is deprecated (:tickets:`317, 343, 387`).
- Added `~psycopg2.extensions.quote_ident()` function (:ticket:`359`).
- Added `~connection.get_dsn_parameters()` connection method (:ticket:`364`).
- `~cursor.callproc()` now accepts a dictionary of parameters (:ticket:`381`).
- Give precedence to `!__conform__()` over superclasses to choose an object
adapter (:ticket:`456`).
- Using Python C API decoding functions and codecs caching for faster
unicode encoding/decoding (:ticket:`473`).
- `~cursor.executemany()` slowness addressed by
`~psycopg2.extras.execute_batch()` and `~psycopg2.extras.execute_values()`
(:ticket:`491`).
- Added ``async_`` as an alias for ``async`` to support Python 3.7 where
``async`` will become a keyword (:ticket:`495`).
- Unless in autocommit, do not use :sql:`default_transaction_*` settings to
control the session characteristics as it may create problems with external
connection pools such as pgbouncer; use :sql:`BEGIN` options instead
(:ticket:`503`).
- `~connection.isolation_level` is now writable and entirely separated from
`~connection.autocommit`; added `~connection.readonly`,
`~connection.deferrable` writable attributes.

Bug fixes:

- Throw an exception trying to pass ``NULL`` chars as parameters
(:ticket:`420`).
- Fixed error caused by missing decoding `~psycopg2.extras.LoggingConnection`
(:ticket:`483`).
- Fixed integer overflow in :sql:`interval` seconds (:ticket:`512`).
- Make `~psycopg2.extras.Range` objects picklable (:ticket:`462`).
- Fixed version parsing and building with PostgreSQL 10 (:ticket:`489`).

Other changes:

- Dropped support for Python 2.5 and 3.1.
- Dropped support for client library older than PostgreSQL 9.1 (but older
server versions are still supported).
- `~connection.isolation_level` doesn't read from the database but will return
`~psycopg2.extensions.ISOLATION_LEVEL_DEFAULT` if no value was set on the
connection.
- Empty arrays no more converted into lists if they don't have a type attached
(:ticket:`506`)

Links

• PyPI: https://pypi.org/project/psycopg2
• Changelog: https://pyup.io/changelogs/psycopg2/
• Homepage: http://initd.org/psycopg/

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