FFS Python

I don't know if I fucked up adding python libs or what, but I get NameError's when trying to use python's built in function 'sorted()' in my own function. 

#!/usr/bin/python -tt

import sys

def Cat(filename):
  f = open(filename, 'rU')
  text = f.readlines()
  print sorted(text)
  print text
  f.close()
def main():
  Cat(sys.argv[1])


        
if __name__ == '__main__':
  main()



All it should do is read from a text file with every line being an element and sort through them.  I simplified my sorted parameters.  The error I get is:


Traceback (most recent call last):
  File "./test.py", line 17, in ?
    main()
  File "./test.py", line 12, in main
    Cat(sys.argv[1])
  File "./test.py", line 8, in Cat
    print sorted(text)
NameError: global name 'sorted' is not defined


fkn python
also version is 2.7, and when i "python -c 'print sorted'"
it tells me:
<built-in function sorted>

Am i fucking up on python's scope or smth maybe?

>>14
I wrote a Greasemonkey script to hide the worst of it, and now the front page is empty. Please advise.