[issue22760] re.sub does only first 16 replacements if re.S is used

[Peter Otten]

Peter Otten added the comment:

This is not a bug; the signature of re.sub() is

sub(pattern, repl, string, count=0, flags=0)

and the fourth argument thus the 'count' delimiting the number of substitutions that you accidentally specify as

>>> import re
>>> re.S
16

I recommend that you use a keyword arg to fix your code:

>>> re.sub('x', 'a', "x"*20, flags=re.S)
'aaaaaaaaaaaaaaaaaaaa'

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nosy: +peter.otten

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22760>
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