Skip to content

Issues: pandas-dev/pandas

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

Clear current search query, filters, and sorts
197 Open 1,158 Closed
197 Open 1,158 Closed
Author
Filter by author
Loading
Label
Filter by label
Loading
Use alt + click/return to exclude labels
or ⇧ + click/return for logical OR
Projects
Filter by project
Loading
Milestones
Filter by milestone
Loading
Assignee
Filter by who’s assigned
Sort
Sort by
Newest Oldest Most commented Least commented Recently updated Least recently updated Best match
Most reactions
👍 👎 😄 🎉 😕 ❤️ 🚀 👀

Issues list

Enhancement: 'Joiner'-Function for pd.merge/DataFrame.join Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#8962 opened Dec 2, 2014 by cstotzer
1
15
ENH: other join types than 'left' for .update Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#8805 opened Nov 13, 2014 by maxgrenderjones
6
ValueError and IndexError for pivot_table Enhancement Error Reporting Incorrect or improved errors from pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#10582 opened Jul 15, 2015 by joshlk
8
ENH/API: check for full rows of DataFrame with isin? Enhancement isin isin method Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#7258 opened May 28, 2014 by jorisvandenbossche
9
Accessing unused columns in pivot_table Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#4733 opened Sep 2, 2013 by wabee
6
BUG: DataFrame.unstack() does not properly sort list of levels Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#9514 opened Feb 18, 2015 by seth-p
7
API: concat of frames with multi-index with non-matching names Bug MultiIndex Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#10187 opened May 21, 2015 by jorisvandenbossche
4
BUG: Automatic upcast to object fails when unstacking datetime/timedelta with incompatible fill_value Bug Datetime Datetime data dtype Dtype Conversions Unexpected or buggy dtype conversions Error Reporting Incorrect or improved errors from pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#12189 opened Jan 31, 2016 by amcpherson
4
pivot_table throws exception with multiple aggregations per column and margins=True Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#12210 opened Feb 2, 2016 by grutts
1
14
BUG: df.stack() returns wrong data when NaT is in index (regression since 2.1.0, ok in <= 2.0.3) Bug Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#57152 opened Jan 30, 2024 by behrenhoff
3 tasks done
2.3
3
BUG: melt no longer supports id_vars and value_vars collapsing levels accross MultiIndex Bug Regression Functionality that used to work in a prior pandas version Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#57663 opened Feb 28, 2024 by mark-thm
3 tasks done
2.3
1
DOC/API: clarify usage of where, mask broadcast arguments Docs Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#15558 opened Mar 3, 2017 by adbull
5
ENH: allow pd.merge / join to create a MultiIndex result for columns Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#15060 opened Jan 4, 2017 by jreback
7
BUG: merging on int32 platforms with large blocks 32bit 32-bit systems Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#13193 opened May 16, 2016 by randomgambit
16
align with broadcast_axis specified always uses inner join when aligning dataframe and series on other axis. Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#13194 opened May 16, 2016 by kdebrab
2
3
ERR: warning on merging on unequal levels for an Index Bug Error Reporting Incorrect or improved errors from pandas Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#13094 opened May 5, 2016 by l736x
1
@SeeminSyed
6
pivot_table margins bottom-left total does not correspond to other content when dropna=False Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#14072 opened Aug 23, 2016 by Tuzoff
2
3
kdb-like window join for pandas Datetime Datetime data dtype Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode Window rolling, ewma, expanding
#13959 opened Aug 10, 2016 by chrisaycock
7
BUG: concat with categorical keys doesn't preserve categorical dtype Bug Categorical Categorical Data Type Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#14016 opened Aug 16, 2016 by pijucha
1
1
API: union_categoricals in concat Categorical Categorical Data Type Enhancement Needs Discussion Requires discussion from core team before further action Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#14177 opened Sep 7, 2016 by jorisvandenbossche
6
merge on index vs merge on column - different NaN handling Enhancement Needs Discussion Requires discussion from core team before further action Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#13371 opened Jun 5, 2016 by ialong
10
BUG: groupby + apply + merge drops index name in edge cases Apply Apply, Aggregate, Transform, Map Bug Groupby Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#16249 opened May 5, 2017 by AdrianTeng
4
Simultaneously melt multiple columns Enhancement Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#17676 opened Sep 25, 2017 by tdpetrou
1
3
Pandas pivot_table MultiIndex and dropna=False generates all combinations of modalities instead of keeping existing one only Bug Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#18030 opened Oct 30, 2017 by jlandercy
2
13
pd.crosstab, categorical data and missing instances Categorical Categorical Data Type Docs good first issue Reshaping Concat, Merge/Join, Stack/Unstack, Explode
#16367 opened May 16, 2017 by peisenha
15
ProTip! Exclude everything labeled bug with -label:bug.