python regular expression replacing part of a matched string

Question

i got an string that might look like this

\"myFunc(\'element\',\'node\',\'elementVersion\',\'ext\',12,0,0)\"

i\'m currently checking for va

Answer 1

In re.sub, you need to specify a substitution for the whole matching string. That means that you need to repeat the parts that you don't want to replace. This works:

myRe = re.compile(r"(myFunc\(.+?\,.+?\,)(.+?)(\,.+?\,.+?\,.+?\,.+?\))")
print myRe.sub(r'\1"noversion"\3', val)