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Python Python Collections (2016, retired 2019) Dictionaries Word Count

Posted by Jose Camilo
Jose Camilo
7,031 Points

My code works on another python environment. but not here. Wonder why..

def word_count(word):

word = word.lower()
words = word.split()    
copy = {}
count = 1
for item in words:
  for key in copy.keys():
      if item == key:
          count = count + 1
  copy[item] = count

return copy

print(word_count("I like my Mom like"))

wordcount.py 
# E.g. word_count("I do not like it Sam I Am") gets back a dictionary like:
# {'i': 2, 'do': 1, 'it': 1, 'sam': 1, 'like': 1, 'not': 1, 'am': 1}
# Lowercase the string to make it easier.
def word_count(word):

    word = word.lower()
    words = word.split()    
    copy = {}
    count = 1
    for item in words:
        for key in copy.keys():
            if item == key:
                count = count + 1
        copy[item] = count

    return copy

3 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

I also made count increment the previous count. The modified code below passed the challenge.

def word_count(word):
    word = word.lower()
    words = word.split()    
    copy = {}
    count = 1
    for item in words:
        count = 1
        for key in copy.keys():
            if item == key:
                count = copy[item] + 1
        copy[item] = count

    return copy
Jose Camilo
Jose Camilo
7,031 Points

Not sure what you are doing in the line:

count = copy[item] + 1

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

Try the example "I do not like it Sam I Am". You'll see 'am' : 2 because count doesn't reset.

Jose Camilo
Jose Camilo
7,031 Points

Yep, forgot to reset the count, since I left it out of the loop but still not working.

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

If an item exists count = copy[item] + 1 updates the count to the current count + 1. I think this code is a little clearer:

def word_count(word):
    word = word.lower()
    words = word.split()    
    copy = {}

    for item in words:
        if item in copy.keys():
            copy[item] = copy[item] + 1
        else:
            copy[item] = 1
    return copy
Jose Camilo
Jose Camilo
7,031 Points

Ohh I see, ok. Thanks for the answer