[New-bugs-announce] [issue33658] Introduce a method to concatenate regex patterns

[Ales Kvapil]

New submission from Ales Kvapil <aleskva at mailinator.com>:

After removing inline flags (deprecated in https://bugs.python.org/issue22493) piping patterns will not work:
pats = [r'(?m)^line.continues$', r'(?s)begin.*?end']
re.compile('|'.join(pats))


Maybe there should be introduced some method to merge patterns (similar to re.escape)?

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components: Regular Expressions
messages: 317787
nosy: aleskva, ezio.melotti, mrabarnett
priority: normal
severity: normal
status: open
title: Introduce a method to concatenate regex patterns
type: enhancement
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33658>
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