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TST: df.combine_first duplicates rows for nan index values (#39881) #43066

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Merged
merged 4 commits into from
Aug 17, 2021
Merged

TST: df.combine_first duplicates rows for nan index values (#39881) #43066

merged 4 commits into from
Aug 17, 2021

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ssche
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@ssche ssche commented Aug 16, 2021

@simonjayhawkins simonjayhawkins changed the title Added test case (#39881) TST: df.combine_first duplicates rows for nan index values (#39881) Aug 16, 2021
@simonjayhawkins simonjayhawkins added Testing pandas testing functions or related to the test suite Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate MultiIndex labels Aug 16, 2021
ssche added 2 commits August 16, 2021 23:28
* "found both 'pd.DataFrame' and 'DataFrame' in the same file"
@jreback jreback added this to the 1.4 milestone Aug 16, 2021
* Explicitly define index in constructor
@ssche ssche requested a review from phofl August 16, 2021 23:57
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Lgtm

@jreback jreback merged commit 9376815 into pandas-dev:master Aug 17, 2021
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jreback commented Aug 17, 2021

thanks @ssche

@ssche ssche deleted the gh39881-combine_first-duplicates-rows-for-nan-index-values branch August 18, 2021 03:16
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BUG: df.combine_first duplicates rows for nan index values
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