urlDecode()

[gert]

import re

def htc(m):
    return chr(int(m.group(1),16))

def urldecode(url):
    rex=re.compile('%([0-9a-hA-H][0-9a-hA-H])',re.M)
    return rex.sub(htc,url)

if  __name__ == '__main__':
    print urldecode('adasasdasd%20asdasdasdas')

Ok thats it enough googeling around i make one my self :)