[issue2650] re.escape should not escape underscore

yeswanth report at bugs.python.org
Thu Jan 13 18:13:41 CET 2011


yeswanth <swamiyeswanth at yahoo.com> added the comment:

@James test results for py3k 


python -m timeit -s "$(printf "import re\ndef escape(s):\n return re.sub('([][.^$*+?{}\\|()])', '\\\1', s)")" 'escape("!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()")'

100000 loops, best of 3: 17.1 usec per loop


python -m timeit -s "import re" 're.escape("!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()!@#$%^&*()")'

10000 loops, best of 3: 102 usec per loop

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