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CLN: remove _from_mgr (no longer used after GH-45363) #45415

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merged 2 commits into from
Jan 19, 2022
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CLN: remove _from_mgr (no longer used after GH-45363) #45415

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eb07f10
CLN: move __finalize__ call into splitter (groupbt GH-45363 follow-up)
jorisvandenbossche Jan 17, 2022
46742a2
Merge remote-tracking branch 'upstream/main' into groupby-subclass-fo…
jorisvandenbossche Jan 18, 2022
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16 changes: 0 additions & 16 deletions pandas/core/generic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -285,22 +285,6 @@ def _init_mgr(
mgr = mgr.astype(dtype=dtype)
return mgr

@classmethod
def _from_mgr(cls, mgr: Manager):
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Removed this, because it was only used in the groupby Splitter (and so that usage was removed in the previous PR)

"""
Fastpath to create a new DataFrame/Series from just a BlockManager/ArrayManager.

Notes
-----
Skips setting `_flags` attribute; caller is responsible for doing so.
"""
obj = cls.__new__(cls)
object.__setattr__(obj, "_is_copy", None)
object.__setattr__(obj, "_mgr", mgr)
object.__setattr__(obj, "_item_cache", {})
object.__setattr__(obj, "_attrs", {})
return obj

def _as_manager(self: NDFrameT, typ: str, copy: bool_t = True) -> NDFrameT:
"""
Private helper function to create a DataFrame with specific manager.
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