[Python-projects] nice-to-have: analyze (some) strings for variable use

[Sylvain Thénault]

On 08 juillet 05:58, skip at pobox.com wrote:
> In this function pylint complains that a and b are unused:
> 
>     def f(a):
>         b = "some var"
>         return "%(a)s, %(b)s" % locals()
> 
> It would be nice if it noticed literal % locals() structure and treated
> variable references within the string as actual usage.

http://www.logilab.org/ticket/9839

In a more general way, pylint should have better understanding of interpolated
string (at least issue error on cases such as ::

 '%s' % (a, b)
 '%(key)s' % {'ke' : 'value'}

...

Would someone be aware of something to extract "interpolation data" from a string?
I've to admit I've not took the time to search for such thing...

-- 
Sylvain Thénault                               LOGILAB, Paris (France)
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