This piece of Pyhton code counts the number of times words occur in a text file, and writes the result in a separate text file.

Document Term Frequency

import string


fil = open('C:\\Python27\\elo.txt' , "r")
new_file = open('C:\Python27\\freq_list.txt', 'w')
text = fil.read()
fil.close()


textClean = ''
for i in text:
    if i.isalpha() or i.isspace():
        textClean+=i

textLow = string.lower(textClean)
textVar = textLow.split()
newText = ''

for w in textVar:
    w += ' '
    if w not in newText:
        newText += w

newText = string.split(newText)

freq_list = ''
for w in newText:
    wordCount = textVar.count(w)
    freq_list = freq_list + w + ',' + str(wordCount) + '\n'

new_file.write(freq_list)