[Python-ideas] re.compile_lazy - on first use compiled regexes
mal at egenix.com
Sat Mar 23 13:52:41 CET 2013
On 23.03.2013 13:43, Ronny Pfannschmidt wrote:
>> Wouldn't it make sense to add a way to pickle or marshal compiled REs ?
>> The precompiled REs could then be loaded directly from the
>> pickle, avoiding the compiling overhead on startup.
> as far as i can tell that would need regex as part of the syntax to make sense fort use in modules
> i dont think such a change would be accepted and i dont even what to deal with the potential
> bikeshedding for such an integration
I wasn't thinking of making it part of the Python byte-code.
It would suffice to add pickle/marshal support for the
compiled RE code. This could then be loaded from a string
embedded in the module code on startup.
# rx = re.compile('.*')
rx = pickle.loads('asdfsadfasdf')
It would also be possible to seed the re module cache with
such pickle.loads, perhaps compiled at Python build time.
This would avoid having to change code in the stdlib to
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