NoListDups.py

"""
This Hashes the list items and compares it to the a Hash of the proposed entry
if entry exists it prints. list and "is already in" and the entry so you may see.
if it enters it the new list is printed

import NoListDups
entrY = "XXiX"
x = ['XXX', 'yyy', 'zzz']
NoListDups.NoDupList(x, entrY)
print x
"""
import hashlib
def hashIt(mystring):
    # Assumes the default UTF-8
    hash_object = hashlib.md5(mystring.encode())
    return(hash_object.hexdigest())
def NoDupList(lisT, entrY):
    for item in lisT:
        if hashIt(item) == hashIt(entrY):
            print entrY," is already in ",lisT
            break
        else:
            lisT.extend([entrY])
            break