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Issues list

BUG: way to include all columns within a groupby apply Apply Apply, Aggregate, Transform, Map Bug Closing Candidate May be closeable, needs more eyeballs Groupby
#61406 opened May 8, 2025 by madelavar12
3 tasks done
4
QST: best way to extend/subclass pandas.DataFrame Closing Candidate May be closeable, needs more eyeballs Usage Question
#61362 opened Apr 26, 2025 by rwijtvliet
2 tasks done
1
BUG: memory issues with string[pyarrow] after sorted pd.merge Arrow pyarrow functionality Bug Closing Candidate May be closeable, needs more eyeballs Upstream issue Issue related to pandas dependency
#61322 opened Apr 20, 2025 by noahblakesmith
3 tasks done
@arjuanwall @phiofuni
@bingbhakdibhumi @eenkhbol
5
BUG: .to_parquet fails with schema for string[pyarrow] but not string[python] Arrow pyarrow functionality Bug Closing Candidate May be closeable, needs more eyeballs Upstream issue Issue related to pandas dependency
#61316 opened Apr 20, 2025 by noahblakesmith
3 tasks done
1
BUG: engine calamine lost 0 when read_excel from vlookup cell Bug Closing Candidate May be closeable, needs more eyeballs IO Excel read_excel, to_excel Upstream issue Issue related to pandas dependency
#61186 opened Mar 27, 2025 by ryjfgjl
2 of 3 tasks
@chilin0525
5
BUG: pd.read_csv() on empty files should give an empty dataframe pd.DataFrame() Bug Closing Candidate May be closeable, needs more eyeballs IO CSV read_csv, to_csv
#61172 opened Mar 24, 2025 by xuancong84
3 tasks done
1
@MartinBraquet
4
BUG: Arugment nan_as_null is unused in __dataframe__ calls. Clean Closing Candidate May be closeable, needs more eyeballs Interchange Dataframe Interchange Protocol
#61025 opened Mar 1, 2025 by ethandavidlee
3 tasks done
@ethandavidlee
2
ENH: Make merge_asof preserve the index Closing Candidate May be closeable, needs more eyeballs Enhancement Needs Discussion Requires discussion from core team before further action Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#60919 opened Feb 12, 2025 by wahsmail
3 tasks done
3
BUG: Memory leak when creating a df inside a loop Bug Closing Candidate May be closeable, needs more eyeballs Constructors Series/DataFrame/Index/pd.array Constructors Performance Memory or execution speed performance Windows Windows OS
#60897 opened Feb 9, 2025 by Chuck321123
3 tasks done
17
BUG: Cannot connect to odoo Bug Closing Candidate May be closeable, needs more eyeballs Needs Info Clarification about behavior needed to assess issue
#60800 opened Jan 27, 2025 by ghost
3 tasks done
5
BUG: The .to_sql() of dtype argument does not strictly ensure the column name and datatype Bug Closing Candidate May be closeable, needs more eyeballs IO SQL to_sql, read_sql, read_sql_query
#60737 opened Jan 20, 2025 by ammarsaf
3 tasks done
1
ENH: Make pd.Timestamp.astimezone() default to local timezone API Design Closing Candidate May be closeable, needs more eyeballs Enhancement Localization Internationalization of data Needs Discussion Requires discussion from core team before further action
#60692 opened Jan 11, 2025 by powellnorma
2 of 3 tasks
2
BUG: Pandas resets counter when using filterwarning "once" Bug Closing Candidate May be closeable, needs more eyeballs Upstream issue Issue related to pandas dependency
#60664 opened Jan 6, 2025 by StrawberryOwl
2 of 3 tasks
5
ENH: Add date_format and date_unit to to_dict similar to what exists in to_json Closing Candidate May be closeable, needs more eyeballs Enhancement IO Data IO issues that don't fit into a more specific label
#60656 opened Jan 4, 2025 by lucasjamar
1 of 3 tasks
1
BUG: memory leak when slice series var assigning to itself Bug Closing Candidate May be closeable, needs more eyeballs Copy / view semantics Performance Memory or execution speed performance
#60640 opened Jan 2, 2025 by hefvcjm
2 of 3 tasks
1
6
BUG: Dropped Index Name on Aggregated Index Column with MultiIndexed DataFrame Bug Closing Candidate May be closeable, needs more eyeballs Groupby
#60603 opened Dec 24, 2024 by RahimD
3 tasks done
1
BUG: Test failures with 2.2.3 on Fedora Rawhide Bug Closing Candidate May be closeable, needs more eyeballs Needs Info Clarification about behavior needed to assess issue
#60589 opened Dec 19, 2024 by opoplawski
2 of 3 tasks
7
BUG: alpine 3.21 install issue Bug Build Library building on various platforms Closing Candidate May be closeable, needs more eyeballs Needs Info Clarification about behavior needed to assess issue
#60554 opened Dec 12, 2024 by tooptoop4
1 of 3 tasks
1
ENH: astype(object) does not convert numpy strings to str Closing Candidate May be closeable, needs more eyeballs Enhancement Strings String extension data type and string data
#60496 opened Dec 5, 2024 by aktobii
3 tasks done
3
ENH: Add first_inverted and last_inverted options to keep in DataFrame.duplicated Closing Candidate May be closeable, needs more eyeballs duplicated duplicated, drop_duplicates Enhancement Needs Discussion Requires discussion from core team before further action
#60394 opened Nov 22, 2024 by tommycarstensen
1 of 3 tasks
4
PERF: index.unique much slower than get_level_values.drop_duplicates Algos Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff Closing Candidate May be closeable, needs more eyeballs Performance Memory or execution speed performance
#60213 opened Nov 6, 2024 by jacek-pliszka
2 of 3 tasks
1
ENH: A .chi2() method on the DataFrame and Series class that will resemble the .corr() methods Closing Candidate May be closeable, needs more eyeballs Enhancement Needs Discussion Requires discussion from core team before further action
#60111 opened Oct 26, 2024 by adamrossnelson
1 of 3 tasks
4
BUG: reading long csv with high numeric values displays a "mixed types" message Bug Closing Candidate May be closeable, needs more eyeballs IO CSV read_csv, to_csv
#60082 opened Oct 22, 2024 by MayeulC-ST
2 of 3 tasks
3
PERF: Extreme regression in 2.2 when aggregating a DataFrame with .attrs data Closing Candidate May be closeable, needs more eyeballs Groupby metadata _metadata, .attrs Performance Memory or execution speed performance
#60070 opened Oct 18, 2024 by buhrmann
2 of 3 tasks
4
BUG: str.split("") gives extra leading and trailing elements Bug Closing Candidate May be closeable, needs more eyeballs Strings String extension data type and string data
#60065 opened Oct 17, 2024 by NickCrews
3 tasks done
9
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