1 f = open('/home/madhu/pyprogs/pytriads.py')

     2 

     3 freq = {}

     4 for line in f:

     5     words = line.split()

     6     for word in words:

     7         key = word.strip(',.!;?\'" ')

     8         value = freq.get(key, 1)

     9         freq[key] = value + 1

    10 

    11 print freq