Regular expression with class in python

import re

class sam:

        def sam1(self,m):
                for i in file.readlines():
                        switch=re.search(r'%s' %m, i)
                        if switch:
                                print i
                        else:
                                print "bye"


        def sam2(self,m):
                comp=re.compile("m")
                for i in file.readlines():
                        switch=comp.findall(i)
                        if switch:
                                print i
                        else:
                                print "joy"




file=open("/etc/passwd","r")
s=sam()
s.sam2("ba*h")