New submission from Jelle Zijlstra:
This code in sre_parse (line 738 and down):
warnings.warn(
'Flags not at the start of the expression %s%s'
% (
source.string[:20], # truncate long regexes
' (truncated)' if len(source.string) > 20
else '',
),
DeprecationWarning, stacklevel=7
)
triggers a BytesWarning if you do `_line_re = re.compile(br'^(.*?)$(?m)')`.
The fix should be simple; I can try to get a PR in over the next few days.
----------
components: Library (Lib)
messages: 298095
nosy: Jelle Zijlstra, ezio.melotti, serhiy.storchaka
priority: normal
severity: normal
status: open
title: BytesWarning in re module when compiling certain bytes patterns
versions: Python 3.6
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Python tracker <[email protected]>
<http://bugs.python.org/issue30896>
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