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

Jordan Hoover
.a{fill-rule:evenodd;}techdegree seal-36
Jordan Hoover
Python Web Development Techdegree Graduate 59,268 Points

Create Dictionary Answer Not Correct

Not sure why the code below isn't working. Again, this is running correctly on my machine. Please help!

# 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(str):
    sentence = str.split(' ')
    dic = {}

    for word in sentence:
        dic[word.lower()] = sentence.count(word)

    return dic

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

So close! split on whitespace (no argument) instead of a literal SPACE.

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

It's these subtle differences between languages that take can catch you off guard. For Python the str.split() method defaults to splitting on whitespace and returns a list.

Another convention in Python is to get a list of all characters in a string use list(string).

2,448 Points

This is tricky. Thanks for your comments. I managed to get similar output (content is same), but the items were in different order.

After following your suggestions, the result matches.