[issue5741] SafeConfigParser incorrectly detects lone percent signs

[Márcio Faustino <report@bugs.python.org> at psf.upfronthosting.co.za]

Márcio Faustino <m.faustino at gmail.com> added the comment:

Shouldn't the "replace('%%', '')" take place before 
"_interpvar_re.sub"? For example, the value "%%(test)s" should be 
accepted as valid but it isn't because "_interpvar_re" has already 
changed it to "%".

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5741>
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