Skip to content

BUG: AssertionError on Series.append(DataFrame) fix #30975 #31036

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 19 commits into from
Jan 24, 2020
Merged

BUG: AssertionError on Series.append(DataFrame) fix #30975 #31036

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
19 commits
Select commit Hold shift + click to select a range
7a3b6fe
GH 30975-Fix for Series.append(DataFrame)
hvardhan20 Jan 15, 2020
8ea217f
GH 30975-Fix for Series.append(DataFrame)
hvardhan20 Jan 15, 2020
d522438
GH 30975-Fix for Series.append(DataFrame) PEP-8 compliant
hvardhan20 Jan 15, 2020
b717007
GH 30975-Fix for Series.append(DataFrame) Adding TypeError Testcase
hvardhan20 Jan 15, 2020
b584b35
GH 30975-Fix for Series.append(DataFrame) Modified
hvardhan20 Jan 16, 2020
1e5e8e7
GH 30975-Fix for Series.append(DataFrame) Doc Build Fix
hvardhan20 Jan 16, 2020
53f1c11
GH 31087 Updates ggpy reference to plotnine
hvardhan20 Jan 17, 2020
4e1f6b1
Revert "GH 31087 Updates ggpy reference to plotnine"
hvardhan20 Jan 17, 2020
041ed12
Revert "GH 31087 Updates ggpy reference to plotnine"
hvardhan20 Jan 17, 2020
721a560
GH 30975-Fix for Series.append(DataFrame) Simple message change
hvardhan20 Jan 17, 2020
f312bae
GH 30975-Fix for Series.append(DataFrame) Simple message test change
hvardhan20 Jan 17, 2020
a1ebee2
GH 30975-Fix for Series.append(DataFrame) Removed self._ensure_type
hvardhan20 Jan 19, 2020
32d2989
GH 30975-Fix for Series.append(DataFrame) Removed self._ensure_type r…
hvardhan20 Jan 19, 2020
87ea2aa
GH 30975-Fix for Series.append(DataFrame) 0.25.3 behaviour
hvardhan20 Jan 20, 2020
19dcea3
GH 30975-Fix for Series.append(DataFrame) 0.25.3 behaviour return typ…
hvardhan20 Jan 20, 2020
cdf92ae
GH 30975-Fix for Series.append(DataFrame) 0.25.3 behaviour return typ…
hvardhan20 Jan 20, 2020
a747921
GH 30975-Fix for Series.append(DataFrame) 0.25.3 behaviour return typ…
hvardhan20 Jan 20, 2020
a256fe8
GH 30975-Fix for Series.append(DataFrame) 0.25.3 behaviour return typ…
hvardhan20 Jan 21, 2020
14e0fb4
GH 30975-Fix for Series.append(DataFrame) 0.25.3 behaviour return typ…
hvardhan20 Jan 21, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 3 additions & 5 deletions pandas/core/series.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2462,7 +2462,7 @@ def searchsorted(self, value, side="left", sorter=None):
# -------------------------------------------------------------------
# Combination

def append(self, to_append, ignore_index=False, verify_integrity=False) -> "Series":
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

rather than deleting the annotation, can you use FrameOrSeriesUnion from pandas._typing instead.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

@simonjayhawkins
FrameOrSeriesUnion is throwing this error during static analysis:
Performing static analysis using mypy
pandas/core/frame.py:2590: error: Incompatible types in assignment (expression has type "Union[DataFrame, Series]", variable has type "Series")

And FrameOrSeries is throwing this:
Performing static analysis using mypy
pandas/core/series.py:2505: error: Incompatible return value type (got "Union[DataFrame, Series]", expected "FrameOrSeries")

I guess this is why there was no type hint initially for 0.25.3 version of append.
What do you think about this?

Thanks!

Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

OK perhaps we should keep this PR to just fixing the regression. so removing the return annotation is fine here.

def append(self, to_append, ignore_index=False, verify_integrity=False):
"""
Concatenate two or more Series.

Expand Down Expand Up @@ -2539,10 +2539,8 @@ def append(self, to_append, ignore_index=False, verify_integrity=False) -> "Seri
to_concat.extend(to_append)
else:
to_concat = [self, to_append]
return self._ensure_type(
concat(
to_concat, ignore_index=ignore_index, verify_integrity=verify_integrity
)
return concat(
to_concat, ignore_index=ignore_index, verify_integrity=verify_integrity
)

def _binop(self, other, func, level=None, fill_value=None):
Expand Down
10 changes: 10 additions & 0 deletions pandas/tests/series/methods/test_append.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,16 @@ def test_append_tuples(self):

tm.assert_series_equal(expected, result)

def test_append_dataframe_regression(self):
# GH 30975
df = pd.DataFrame({"A": [1, 2]})
result = df.A.append([df])
expected = pd.DataFrame(
{0: [1.0, 2.0, None, None], "A": [None, None, 1.0, 2.0]}, index=[0, 1, 0, 1]
)

tm.assert_frame_equal(expected, result)


class TestSeriesAppendWithDatetimeIndex:
def test_append(self):
Expand Down