How to create a program in python that prints the number of occurrence of words in a string

Question

I wanted to create a code that printed the frequency of words in a string and I did but I had a little problem though. Here's the code:

string=input("Enter your string: ")
string=string.split()
a=0
while(a<len(string)):
     print (string[a], "=", string.count(string[a]))
     a=a+1

Everything ran fine but if a word occurred twice, it'd say the word and state the occurrence in two places. I really need help here. Thanks!

collections.Counter() does exactly what you are looking for. — AChampion
– AChampion, Commented May 7, 2018 at 1:00

Primusa · Accepted Answer · 2018-05-07 01:11:37Z

1

You can get rid of duplicates in a string by using set() and only iterate through unique strings:

s=input("Enter your string: ")
s=s.split()

for i in set(s):
    print(i, "=", s.count(i)

Alternatively you can use collections.Counter():

from collections import Counter

s=input("Enter your string: ")
s=s.split()

for key, value in Counter(s).items():
    print(key, "=", value)

answered May 7, 2018 at 1:03

Primusa

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3 Comments

Thanks that really helped a lot Finally did it

I'm happy to help :). If this solution solved your problem you can mark it as accepted by clicking the checkmark next to it. Cheers!

Note: it would probably be a good idea not to name your variable string there is a standard string module this would hide.