[issue12078] re.sub() replaces only several matches

[Matthew Barnett]

Matthew Barnett <python at mrabarnett.plus.com> added the comment:

Argument 4 of re.sub is the maximum number of replacements, NOT flags:

Help on function sub in module re:

sub(pattern, repl, string, count=0, flags=0)
    Return the string obtained by replacing the leftmost
    non-overlapping occurrences of the pattern in string by the
    replacement repl.  repl can be either a string or a callable;
    if a string, backslash escapes in it are processed.  If it is
    a callable, it's passed the match object and must return
    a replacement string to be used.

re.I is 2, so you're telling it to perform at most 2 replacements.

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nosy: +mrabarnett

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<http://bugs.python.org/issue12078>
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