What’s new in 1.5.3 (January 18, 2023)#
These are the changes in pandas 1.5.3. See Release notes for a full changelog including other versions of pandas.
Fixed regressions#
Fixed performance regression in
Series.isin()
whenvalues
is empty (GH49839)Fixed regression in
DataFrame.memory_usage()
showing unnecessaryFutureWarning
whenDataFrame
is empty (GH50066)Fixed regression in
DataFrameGroupBy.transform()
when used withas_index=False
(GH49834)Enforced reversion of
color
as an alias forc
andsize
as an alias fors
in functionDataFrame.plot.scatter()
(GH49732)Fixed regression in
SeriesGroupBy.apply()
setting aname
attribute on the result if the result was aDataFrame
(GH49907)Fixed performance regression in setting with the
at()
indexer (GH49771)Fixed regression in
to_datetime()
raisingValueError
when parsing array offloat
containingnp.nan
(GH50237)
Bug fixes#
Bug in the Copy-on-Write implementation losing track of views when indexing a
DataFrame
with anotherDataFrame
(GH50630)Bug in
Styler.to_excel()
leading to error when unrecognizedborder-style
(e.g."hair"
) provided to Excel writers (GH48649)Bug in
Series.quantile()
emitting warning from NumPy whenSeries
has onlyNA
values (GH50681)Bug when chaining several
Styler.concat()
calls, only the last styler was concatenated (GH49207)Fixed bug when instantiating a
DataFrame
subclass inheriting fromtyping.Generic
that triggered aUserWarning
on python 3.11 (GH49649)Bug in
pivot_table()
with NumPy 1.24 or greater when theDataFrame
columns has nested elements (GH50342)Bug in
pandas.testing.assert_series_equal()
(and equivalentassert_
functions) when having nested data and using numpy >= 1.25 (GH50360)
Other#
Note
If you are using DataFrame.to_sql()
, read_sql()
, read_sql_table()
, or read_sql_query()
with SQLAlchemy 1.4.46 or greater,
you may see a sqlalchemy.exc.RemovedIn20Warning
. These warnings can be safely ignored for the SQLAlchemy 1.4.x releases
as pandas works toward compatibility with SQLAlchemy 2.0.
Reverted deprecation (GH45324) of behavior of
Series.__getitem__()
andSeries.__setitem__()
slicing with an integerIndex
; this will remain positional (GH49612)A
FutureWarning
raised when attempting to set values inplace withDataFrame.loc()
orDataFrame.iloc()
has been changed to aDeprecationWarning
(GH48673)
Contributors#
A total of 19 people contributed patches to this release. People with a “+” by their names contributed a patch for the first time.
Emma Carballal Haire +
Irv Lustig
JHM Darbyshire
Joris Van den Bossche
Marc Garcia
Marco Edward Gorelli
MarcoGorelli
Matthew Roeschke
MeeseeksMachine
Natalia Mokeeva
Pandas Development Team
Patrick Hoefler
Richard Shadrach
Tsvika Shapira +
William Ayd
aneesh98
jakirkham +
jbrockmendel
silviaovo +