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DOC: read_csv usecols element order is ignored #18729

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Merged
merged 1 commit into from
Dec 21, 2017

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ignamv
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@ignamv ignamv commented Dec 11, 2017

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codecov bot commented Dec 11, 2017

Codecov Report

Merging #18729 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##           master   #18729      +/-   ##
==========================================
- Coverage   91.64%   91.62%   -0.02%     
==========================================
  Files         154      154              
  Lines       51428    51428              
==========================================
- Hits        47129    47120       -9     
- Misses       4299     4308       +9
Flag Coverage Δ
#multiple 89.49% <ø> (ø) ⬆️
#single 40.83% <ø> (-0.12%) ⬇️
Impacted Files Coverage Δ
pandas/io/parsers.py 95.55% <ø> (ø) ⬆️
pandas/io/gbq.py 25% <0%> (-58.34%) ⬇️
pandas/core/frame.py 97.68% <0%> (-0.11%) ⬇️

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@@ -101,7 +101,8 @@
be positional (i.e. integer indices into the document columns) or strings
that correspond to column names provided either by the user in `names` or
inferred from the document header row(s). For example, a valid array-like
`usecols` parameter would be [0, 1, 2] or ['foo', 'bar', 'baz'].
`usecols` parameter would be [0, 1, 2] or ['foo', 'bar', 'baz']. Element
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can you also add this note to io.rst

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Done.

@jreback jreback added this to the 0.23.0 milestone Dec 21, 2017
@jreback jreback merged commit cc7a10c into pandas-dev:master Dec 21, 2017
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jreback commented Dec 21, 2017

thanks @ignamv

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ignamv commented Dec 22, 2017

You're welcome.

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read_csv() usecols behavior unclear
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