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bpo-32255: Fix inconsistent behavior when csv.writer writes None #4769

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Merged
merged 6 commits into from
Dec 12, 2017
Merged

bpo-32255: Fix inconsistent behavior when csv.writer writes None #4769

merged 6 commits into from
Dec 12, 2017

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Licht-T
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@Licht-T Licht-T commented Dec 9, 2017 •
edited by bedevere-bot
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@Licht-T Licht-T changed the title bpo-32255: Fix inconsistent behavior when csv.writer writes "''" bpo-32255: Fix inconsistent behavior when csv.writer writes None Dec 11, 2017
serhiy-storchaka
serhiy-storchaka reviewed Dec 11, 2017
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LGTM besides a small style nitpick.

Please add a Misc/NEWS.d/ entry (manually or using the blurb tool, see the devguide) and add your name into Misc/ACKS.

Lib/test/test_csv.py Outdated
def test_writerows_with_none(self):
with TemporaryFile("w+", newline='') as fileobj:
writer = csv.writer(fileobj)
writer.writerows([['a',None],[None,'d']])
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Please add spaces after commas to conform PEP 8.

@serhiy-storchaka serhiy-storchaka added needs backport to 3.6 type-bug An unexpected behavior, bug, or error labels Dec 11, 2017
@Licht-T
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Licht-T commented Dec 11, 2017

Thanks @serhiy-storchaka, fixed!

serhiy-storchaka
serhiy-storchaka reviewed Dec 11, 2017
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Misc/NEWS.d/next/Library/2017-12-12-07-29-06.bpo-32255.2bfNmM.rst Outdated
@@ -0,0 +1 @@
Fix inconsistent ``csv.writer`` behavior when it handles ``None``
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@serhiy-storchaka serhiy-storchaka Dec 11, 2017 •
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Add "Patch by Licht Takeuchi."

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And don't forgot periods at the end of sentences.

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Licht-T commented Dec 11, 2017

@serhiy-storchaka Fixed!

@serhiy-storchaka serhiy-storchaka merged commit 2001900 into python:master Dec 12, 2017
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Thanks @Licht-T for the PR, and @serhiy-storchaka for merging it 🌮🎉.. I'm working now to backport this PR to: 3.6.
🐍🍒⛏🤖 I'm not a witch! I'm not a witch!

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Dec 12, 2017
@Licht-T @miss-islington
bpo-32255: Always quote a single empty field when write into a CSV fi…
9d67339 
…le. (pythonGH-4769)

This allows to distinguish an empty row from a row consisting of a single empty field.
(cherry picked from commit 2001900)
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GH-4810 is a backport of this pull request to the 3.6 branch.

serhiy-storchaka pushed a commit that referenced this pull request Dec 12, 2017
@miss-islington @serhiy-storchaka
bpo-32255: Always quote a single empty field when write into a CSV fi…
ce5a3cd 
…le. (GH-4769) (#4810)

This allows to distinguish an empty row from a row consisting of a single empty field.
(cherry picked from commit 2001900)
@Licht-T Licht-T mentioned this pull request Dec 12, 2017
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@Licht-T @the-knights-who-say-ni @miss-islington @bedevere-bot @serhiy-storchaka