I've got a string looks like this

ABC(a =2,b=3,c=5,d=5,e=Something)

I want the result to be like

ABC(a =2,b=3,c=5)

What's the best way to do this? I prefer to use regular expression in Python.

Sorry, something changed, the raw string changed to

ABC(a =2,b=3,c=5,dddd=5,eeee=Something)

longer = "ABC(a =2,b=3,c=5,d=5,e=Something)"shorter = re.sub(r',\s*d=\d+,\s*e=[^)]+', '', longer)# shorter: 'ABC(a =2,b=3,c=5)'

When the OP finally knows how many elements are there in the list, he can also use:

shorter = re.sub(r',\s*d=[^)]+', '', longer)

it cuts the , d= and everything after it, but not the right parenthesis.