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Issues list

BUG: Inconsistent dtype behavior between read_csv and convert_dtypes with pyarrow backend for datetime Arrow pyarrow functionality Bug Datetime Datetime data dtype IO CSV read_csv, to_csv
#55422 opened Oct 6, 2023 by koizumihiroo
2 of 3 tasks
@lithomas1
5
BUG: read_csv() silently ignores out-of-range integers Bug IO CSV read_csv, to_csv Regression Functionality that used to work in a prior pandas version
#55232 opened Sep 21, 2023 by davidchall
2 of 3 tasks
2.2.3
5
ENH: Inform on row & column of failed type conversion when parsing CSV files Enhancement IO CSV read_csv, to_csv Needs Discussion Requires discussion from core team before further action
#53966 opened Jul 1, 2023 by DavidToneian
1 of 3 tasks
@DavidToneian
4
ENH/PERF: provide pyarrow engine option for to_csv Arrow pyarrow functionality Enhancement IO CSV read_csv, to_csv Performance Memory or execution speed performance
#53618 opened Jun 12, 2023 by jorisvandenbossche
1
@lithomas1
7
BUG: on_bad_lines=callable does not invoke callable for all bad lines Enhancement IO CSV read_csv, to_csv Needs Discussion Requires discussion from core team before further action
#53599 opened Jun 11, 2023 by zoushucai
2 of 3 tasks
5
ENH: Include df.attrs in to_csv output Enhancement IO CSV read_csv, to_csv
#53577 opened Jun 9, 2023 by canthonyscott
1 of 3 tasks
2
5
BUG: pyarrow's csv reader yields different results than the deafult csv reader on strings that look like floating points Arrow pyarrow functionality Bug Closing Candidate May be closeable, needs more eyeballs IO CSV read_csv, to_csv
#53269 opened May 17, 2023 by Meehai
3 tasks done
6
BUG: Instantiating pandas._libs.parsers.TextReader segfaults Bug Internals Related to non-user accessible pandas implementation IO CSV read_csv, to_csv
#53131 opened May 7, 2023 by JelleZijlstra
2 of 3 tasks
1
BUG: read_csv, sep=None, wrong separator guessing in case of one column csv Bug IO CSV read_csv, to_csv Needs Discussion Requires discussion from core team before further action
#53035 opened May 2, 2023 by louisgeisler
2 of 3 tasks
1
@Toroi0610
23
Understanding string interning in pd.read_csv vs. other methods of creating large object columns IO CSV read_csv, to_csv Performance Memory or execution speed performance Usage Question
#52639 opened Apr 12, 2023 by zbs
3 tasks done
5
BUG: pd.read_csv does not work with nullable_dtype coercion Bug IO CSV read_csv, to_csv
#52594 opened Apr 11, 2023 by MCRE-BE
2 of 3 tasks
5
BUG: Pyarrow engine doesn't seem to support \s+ but error message implies it does? Arrow pyarrow functionality Bug Error Reporting Incorrect or improved errors from pandas IO CSV read_csv, to_csv
#52554 opened Apr 9, 2023 by IgnacioJPickering
2 of 3 tasks
1
1
BUG: pd.read_csv(io.StringIO("a\nNone")).a[0] is 'None' on pandas 1 but NaN on pandas 2 IO CSV read_csv, to_csv Regression Functionality that used to work in a prior pandas version
#52493 opened Apr 6, 2023 by graingert
1 of 3 tasks
10
ENH: Add engine_kwargs to read_csv Arrow pyarrow functionality Enhancement IO CSV read_csv, to_csv
#52301 opened Mar 30, 2023 by Finndersen
1 of 3 tasks
7
BUG: C parser attempts to convert string chars encoded in ISO-8859-1 from S3 stream object to UTF-8 and fails it Bug IO CSV read_csv, to_csv
#52252 opened Mar 28, 2023 by ekk-0tsu
3 tasks done
3
BUG: support decimal keyword for Float64Dtype in read_csv Bug Dtype Conversions Unexpected or buggy dtype conversions IO CSV read_csv, to_csv NA - MaskedArrays Related to pd.NA and nullable extension arrays
#52086 opened Mar 20, 2023 by RobbertDM
3 tasks done
1
@hxy450
2
ENH: read_csv warn about suspicious extensions Enhancement IO CSV read_csv, to_csv Needs Discussion Requires discussion from core team before further action
#51829 opened Mar 7, 2023 by janosh
3 tasks
4
BUG: read_csv regression from version 1.3.5 to 1.5.3 Bug Error Reporting Incorrect or improved errors from pandas IO CSV read_csv, to_csv
#51801 opened Mar 5, 2023 by gsportelli
3 tasks done
2
BUG: read_csv giving bus error (sometimes segfault too) Bug Index Related to the Index class or subclasses IO CSV read_csv, to_csv Segfault Non-Recoverable Error
#51791 opened Mar 4, 2023 by Droidking18
2 of 3 tasks
4
BUG: Memory leak after pd.read_csv() with default parameters Bug IO CSV read_csv, to_csv Performance Memory or execution speed performance
#51667 opened Feb 27, 2023 by viper7882
3 tasks done
6
BUG: to_csv date_format is not taken into account for PeriodArrays Bug IO CSV read_csv, to_csv
#51621 opened Feb 24, 2023 by smarie
3 tasks done
1
@lia2710
1
BUG: read_csv() fails to detect floats larger than 2.0^64 Bug Dtype Conversions Unexpected or buggy dtype conversions IO CSV read_csv, to_csv
#51295 opened Feb 10, 2023 by akaihola
2 of 3 tasks
1
BUG: CSV file with carriage return breaks pandas Bug IO CSV read_csv, to_csv
#51141 opened Feb 3, 2023 by pgdr
3 tasks done
4
BUG: pd.DataFrame.to_csv with escaping produces different output in python 3.10 and 3.11 than 3.8 and 3.9 Bug IO CSV read_csv, to_csv Python 3.10 Python 3.11
#51123 opened Feb 2, 2023 by LeeMendelowitz
3 tasks done
ENH: Disallow to_csv to download and write to in-memory stream when http url is provided Enhancement Error Reporting Incorrect or improved errors from pandas IO CSV read_csv, to_csv
#50709 opened Jan 12, 2023 by ali-cetin-4ss
3 tasks done
1
ProTip! Exclude everything labeled bug with -label:bug.