#!/usr/local/bin/python

import fileinput
import string
import os
import sys
import re

PYDOC_CMD = '/usr/bin/pydoc'

def getLanguage(s):
  if string.count(s, '.py.') > 0:
    return 'python'
  else:
    return ''
  
def replacePython(tok):
  if tok == 'for':
  	print 'for i in X:'

def getPyDoc(tok):
  rc = os.popen(PYDOC_CMD + " " + tok).read()
  rec = string.split(rc, "\n")
  for line in rec:
    if re.compile("^" + tok).match(line, 0) != None:
      print line

if __name__ == "__main__":
  tok = ''
  
  if getLanguage(sys.argv[1]) != 'python':
    print 'language of source file not supported.'
    
  for my_line in fileinput.input():
    tok = tok + my_line
  
  getPyDoc(tok)