How to use regexp on file, line by line, in Python

Question

Here is my regexp: f\\(\\s*([^,]+)\\s*,\\s*([^,]+)\\s*\\)

I\'d have to apply this on a file, line by line. The line by line is OK, simple reading from

Answer 1

use import re, then re.compile() with your pattern as an argument, and use the resulting object's match attribute on each line. something like this..

import re 
pat = re.compile(r'f\(\s*([^,]+)\s*,\s*([^,]+)\s*\)')
for line in file:
  # use pat.match, pat.search .. etc