Get dictionary-keys used to format a string
effbot at telia.com
Thu Mar 2 18:43:02 CET 2000
Michael Ströder <michael.stroeder at inka.de> wrote:
> Hence the example from the Python docs:
> '%(language)s has %(count)03d quote types.' % vars()
> I would like to extract the keys in the formatting string to a list.
> Well I can parse it myself but is there a built-in function to
> extract a list/tuple of the dictionary keys, e.g.
> ['language','count'] in this case?
>>> s = '%(language)s has %(count)03d quote types.'
>>> import re
>>> re.findall(r'%\((\w+)\)', s)
hope this helps!
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