python regular expression with return type

import re
def rerun(m):
        f1=open("/etc/passwd","r")
        match1=0
        lines=0
        for i in f1.readlines():
                match=re.search(m, i)
                if match:
                        match1 += 1
                lines += 1
        return(match1, lines)

if __name__ == "__main__":
        match, lines = rerun('bash')
        print match
        print lines