New submission from Cheryl Sabella <chek...@gmail.com>:
I apologize if this is a duplicate question, but I couldn't find another issue
about this. It's hard to search on 're'.
In 3.7, I get a deprecation warning when using a regular string with re escape
characters:
>>> s = '123abcd'
>>> re.findall('\d', s)
<stdin>:1: DeprecationWarning: invalid escape sequence \d
['1', '2', '3']
Of course, this works:
>>> s = '123abcd'
>>> re.findall(r'\d', s)
['1', '2', '3']
I know that the documentation strongly suggests using raw strings with re, but
I didn't see anywhere mentioning that it would be a requirement. I would think
this would break a lot of 're' code.
----------
assignee: docs@python
components: Documentation
messages: 310300
nosy: csabella, docs@python
priority: normal
severity: normal
status: open
title: Deprecation warning on strings used in re module
type: enhancement
versions: Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue32603>
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