gistfile1.txt

#!/usr/bin/env python
import commands
import re

user_homedir=commands.getoutput('cat /etc/passwd | grep %s | cut -d ":" -f 6' % (user_name)).split('\n')
ims_cmd = "export INPUT_METHOD=\"%s\"" % (selected_cin)
user_profile = open(str(user_homedir[0])+'/.profile', 'rw')
profile_contain = user_profile.readlines()
profile_len = len(profile_contain)
search_str = re.compile('^export INPUT_METHOD=')
for i in range(profile_len):
 if search_str.match(profile_contain[i]):
  del profile_contain[i]

user_profile.write()