Bug#971960: python3-debian: Needlessly recompiles 3 regex with each call to Deb822._internal_parser

[Stuart Prescott]

Control: tags -1 + patch

There are a couple of other uses of re.compile inside functions that are also 
easy to fix:

https://salsa.debian.org/python-debian-team/python-debian/-/merge_requests/27

(re.compile's internal caching probably makes this a non-issue anyway, but 
just in case, we can make the change as it's easy enough to do)


-- 
Stuart Prescott    http://www.nanonanonano.net/   stuart at nanonanonano.net
Debian Developer   http://www.debian.org/         stuart at debian.org
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