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Merged
merged 9 commits into from
Feb 7, 2021
Merged

BUG: inspect.getmembers(Series) #38782

merged 9 commits into from
Feb 7, 2021

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topper-123
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@topper-123 topper-123 commented Dec 29, 2020 •
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Make inspect.getmembers(Series) work, previously raised an AbstractMethodError.

xref: #38740

@topper-123 topper-123 changed the title TST: test inspect.getmembers(Series) BUG: inspect.getmembers(Series) Dec 29, 2020
jreback
jreback reviewed Dec 29, 2020
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doc/source/whatsnew/v1.3.0.rst Outdated
@@ -302,7 +302,7 @@ ExtensionArray
Other
^^^^^

-
- ``inspect.getmembers(Series)`` no longer raises an ``AbstractMethodError`` (:issue:`38782`).
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note we backported the other issue. ok for this too.

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remove from here

@jreback jreback added Bug Compat pandas objects compatability with Numpy or Python functions labels Dec 29, 2020
topper-123
topper-123 commented Dec 29, 2020
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pandas/core/generic.py
original, such as DataFrame single columns slicing.
"""
raise AbstractMethodError(self)

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This isn't used on Series. Calling it on a Series should just result in an AttributeError.

@topper-123 topper-123 force-pushed the test_getmembers_series branch from 1e46304 to eeef0ef Compare December 29, 2020 16:54
jreback
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doc/source/whatsnew/v1.3.0.rst Outdated
@@ -302,7 +302,7 @@ ExtensionArray
Other
^^^^^

-
- ``inspect.getmembers(Series)`` no longer raises an ``AbstractMethodError`` (:issue:`38782`).
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remove from here

@jreback jreback added this to the 1.2.1 milestone Dec 29, 2020
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Note there was quite some discussion about this on #31549 (it is also reported as a bug in python itself), and in the and this was fixed for _constructor_expanddim differently in #33628

I don't care much about how it is folved, but probably good to be consistent for _constructor_expanddim and _constructor_sliced ?

note we backported the other issue. ok for this too.

I would just leave it for 1.3 (it's not a regression like the other issue). You never know how some subclass might be using this method (or relying on the exact error class)

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jreback commented Dec 29, 2020

I would just leave it for 1.3 (it's not a regression like the other issue). You never know how some subclass might be using this method (or relying on the exact error class)

makes sense.

@jreback jreback modified the milestones: 1.2.1, 1.3 Dec 29, 2020
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topper-123 commented Dec 30, 2020 •
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I don't care much about how it is folved, but probably good to be consistent for _constructor_expanddim and _constructor_sliced ?

I've made a new version, where they're the same: _constructor_sliced is only for DataFrame (it doesn't make sense for Series) and _constructor_expanddim is only available on Series (doesn't make sense for DataFrame, now that NDFrame higher than 2 is gone).

jorisvandenbossche
jorisvandenbossche reviewed Dec 30, 2020
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doc/source/development/extending.rst Outdated
``_constructor_sliced`` ``NotImplementedError`` ``Series``
``_constructor_expanddim`` ``DataFrame`` ``NotImplementedError``
=========================== ======================= =============
* ``DataFrame/Series._constructor``: Used when a manipulation result has the same (sub-)class as the original.
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I would keep the "same dimension as the original", because it doesn't necessarily need to return the same class (eg a subclass' _constructor can return a non-subclassed DataFrame in certain cases)

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I didn't like "same dimension as the original" because it could be understood like e.g. an array could be used, which would be wrong. By using "(sub-)class" is is implied that for e.g. for Series you have to supply a Series or a subclass of a Series (but not a DataFrame or a 1-dim array).

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Is this ok? My opinion is that it’s better to emphazise the type Here, rather than the dimensionality.

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I’ve changed this to say dimension rather than subclass. IDT the next gwo lines shares this issue, but let me know.

@topper-123 topper-123 force-pushed the test_getmembers_series branch from 5f71dc3 to af40a78 Compare January 16, 2021 09:05
@topper-123 topper-123 modified the milestones: 1.3, 1.2.1 Jan 16, 2021
@topper-123 topper-123 force-pushed the test_getmembers_series branch from 2850242 to ed8528a Compare January 29, 2021 23:41
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Ping.

@topper-123 topper-123 force-pushed the test_getmembers_series branch from ed8528a to 1b1bf16 Compare February 5, 2021 22:29
@jreback jreback merged commit 4e7151b into pandas-dev:master Feb 7, 2021
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jreback commented Feb 7, 2021

thanks @topper-123

CyberQin pushed a commit to CyberQin/pandas that referenced this pull request Feb 8, 2021
@topper-123 @CyberQin
BUG: inspect.getmembers(Series) (pandas-dev#38782)
47e5b1c
@topper-123 topper-123 deleted the test_getmembers_series branch February 8, 2021 17:23
@ggold7046 ggold7046 mentioned this pull request Aug 10, 2023
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