Python test string in list of string format

Question

I'm looking for a python module that would help to test if a string is in a list of formatted string. I can't find the exact words to explain my problem (that's probably why I didn't find anything) so here is an example :

REGISTERED_KEYS = (
    'super_key',
    'key_ending_with_anything_*',
    'anything'
)

is_key_registered("super_key", REGISTERED_KEYS)
>> True

is_key_registered("wrong_key", REGISTERED_KEYS)
>> False

is_key_registered("key_ending_with_anything_foobar", REGISTERED_KEYS)
>> True

The thing is not to simply check if a string is in a list but it's also to allow string formatting. I may have to use regexp but I wanted to know if there's an existing module that does this (as it seems to be a common need). Edit : the format of my REGISTERED_KEYS doesn't have to me the one I've written. Can be regex.

Thanks

This is the exact use case of regexes, so the only module you need is `re` — lejlot, Dec 16 '15 at 08:54
it is a regex, it does not matter what kind of syntax you use, * or typical regexes. — lejlot, Dec 16 '15 at 10:09

score 3 · Answer 1 · answered Dec 16 '15 at 08:57

3

If you want to use file wildcards, then use the appropriate library for matching filenames: fnmatch

import fnmatch

def is_key_registered(foo, keys):
    return any(fnmatch.fnmatch(foo, key) for key in keys)

answered Dec 16 '15 at 08:57

eumiro

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Kenly · Answer 2 · 2015-12-16T09:10:05.593

0

You can browse all key an check them:

import re


def is_key_registered(key, keys):
    for _ in keys:
        if re.search(_, key):
            return True

edited Dec 16 '15 at 09:10

answered Dec 16 '15 at 08:56

Kenly

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Python test string in list of string format

2 Answers2