What’s new in 1.3.2 (August 15, 2021)¶
These are the changes in pandas 1.3.2. See Release notes for a full changelog including other versions of pandas.
Fixed regressions¶
Performance regression in
DataFrame.isin()
andSeries.isin()
for nullable data types (GH42714)Regression in updating values of
Series
using boolean index, created by usingDataFrame.pop()
(GH42530)Regression in
DataFrame.from_records()
with empty records (GH42456)Fixed regression in
DataFrame.shift()
whereTypeError
occurred when shifting DataFrame created by concatenation of slices and fills with values (GH42719)Regression in
DataFrame.agg()
when thefunc
argument returned lists andaxis=1
(GH42727)Regression in
DataFrame.drop()
does nothing ifMultiIndex
has duplicates and indexer is a tuple or list of tuples (GH42771)Fixed regression where
read_csv()
raised aValueError
when parametersnames
andprefix
were both set toNone
(GH42387)Fixed regression in comparisons between
Timestamp
object anddatetime64
objects outside the implementation bounds for nanoseconddatetime64
(GH42794)Fixed regression in
Styler.highlight_min()
andStyler.highlight_max()
wherepandas.NA
was not successfully ignored (GH42650)Fixed regression in
concat()
wherecopy=False
was not honored inaxis=1
Series concatenation (GH42501)Regression in
Series.nlargest()
andSeries.nsmallest()
with nullable integer or float dtype (GH42816)Fixed regression in
Series.quantile()
withInt64Dtype
(GH42626)Fixed regression in
Series.groupby()
andDataFrame.groupby()
where supplying theby
argument with a Series named with a tuple would incorrectly raise (GH42731)
Bug fixes¶
Bug in
read_excel()
modifies the dtypes dictionary when reading a file with duplicate columns (GH42462)1D slices over extension types turn into N-dimensional slices over ExtensionArrays (GH42430)
Fixed bug in
Series.rolling()
andDataFrame.rolling()
not calculating window bounds correctly for the first row whencenter=True
andwindow
is an offset that covers all the rows (GH42753)Styler.hide_columns()
now hides the index name header row as well as column headers (GH42101)Styler.set_sticky()
has amended CSS to control the column/index names and ensure the correct sticky positions (GH42537)Bug in de-serializing datetime indexes in PYTHONOPTIMIZED mode (GH42866)
Contributors¶
A total of 16 people contributed patches to this release. People with a “+” by their names contributed a patch for the first time.
Alexander Gorodetsky +
Fangchen Li
Fred Reiss
Justin McOmie +
Matthew Zeitlin
MeeseeksMachine
Pandas Development Team
Patrick Hoefler
Richard Shadrach
Shoham Debnath
Simon Hawkins
Thomas Li
Wenjun Si
attack68
dicristina +
jbrockmendel