How to remove duplicate characters in a string python?

Question

Problem:

Well, let’s assume I have a string in python and I am willing to remove all the duplicates characters from my string. Suppose my string is “Australia” the program should return “Austrli”

So, my question is simple. How can I remove duplicate characters in a string python?

Answer 1

You can easily remove the duplicates from a string in a python program. It can be done as an orderly format and disorderly format too. I am putting two different ways in a single program. I think it will help you to understand better. 

from collections import OrderedDict 

def removeDuplicatesDisorderly(mystr): 
    return "".join(set(mystr)) 
  
def removeDuplicatesOrderly(mystr): 
    return "".join(OrderedDict.fromkeys(mystr))  
  
if __name__ == "__main__": 
    mystr = "australia"
    print "Without Order = ",removeDuplicatesDisorderly(mystr) 
    print "With Order = ",removeDuplicatesOrderly(mystr) 

And the output you will get:

Without Order =  ailsrut
With Order =  austrli

This might help you to understand the program easily. Keep coding.