Remove Duplicates from Text File

Question

I want to remove duplicate word from a text file.

i have some text file which contain such like following:

None_None

ConfigHandler_56663624
ConfigHa         


        

Answer 1

import json
myfile = json.load(open('yourfile', 'r'))
uniq = set()
for p in myfile:
if p in uniq:
    print "duplicate : " + p
    del p
else:
    uniq.add(p)
print uniq