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sub function would not work without the flags but the search would work fine #85930

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bayat mannequin opened this issue Sep 11, 2020 · 2 comments
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sub function would not work without the flags but the search would work fine #85930

bayat mannequin opened this issue Sep 11, 2020 · 2 comments
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3.8 (EOL) end of life topic-regex

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@bayat
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Mannequin

bayat mannequin commented Sep 11, 2020

BPO 41764
Nosy @ezio-melotti

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = <Date 2020-09-11.18:10:33.855>
created_at = <Date 2020-09-11.17:12:58.342>
labels = ['expert-regex', 'invalid', '3.8']
title = 'sub function would not work without the flags but the search would work fine'
updated_at = <Date 2020-09-11.18:10:33.854>
user = 'https://bugs.python.org/bayat'

bugs.python.org fields:

activity = <Date 2020-09-11.18:10:33.854>
actor = 'mrabarnett'
assignee = 'none'
closed = True
closed_date = <Date 2020-09-11.18:10:33.855>
closer = 'mrabarnett'
components = ['Regular Expressions']
creation = <Date 2020-09-11.17:12:58.342>
creator = 'bayat'
dependencies = []
files = []
hgrepos = []
issue_num = 41764
keywords = []
message_count = 2.0
messages = ['376734', '376736']
nosy_count = 3.0
nosy_names = ['ezio.melotti', 'mrabarnett', 'bayat']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue41764'
versions = ['Python 3.8']
@bayat
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bayat mannequin commented Sep 11, 2020

it would work like this sub("pattern","replace", txt, flags= re.IGNORECASE | re.DOTALL)
but it wouldnt work like this sub("pattern","replace", txt, re.IGNORECASE | re.DOTALL)

@bayat bayat mannequin added 3.8 (EOL) end of life topic-regex labels Sep 11, 2020
@mrabarnett
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mrabarnett mannequin commented Sep 11, 2020

The arguments are: re.sub(pattern, repl, string, count=0, flags=0).

Therefore:

    re.sub("pattern","replace", txt, re.IGNORECASE | re.DOTALL)

is passing re.IGNORECASE | re.DOTALL as the count, not the flags.

It's in the documentation and the interactive help.

@mrabarnett mrabarnett mannequin closed this as completed Sep 11, 2020
@mrabarnett mrabarnett mannequin added the invalid label Sep 11, 2020
@mrabarnett mrabarnett mannequin closed this as completed Sep 11, 2020
@mrabarnett mrabarnett mannequin added the invalid label Sep 11, 2020
@ezio-melotti ezio-melotti transferred this issue from another repository Apr 10, 2022
@ghost ghost mentioned this issue Apr 12, 2022
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@hauntsaninja hauntsaninja mentioned this issue Dec 1, 2022
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