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

orenbatsoren
orenbatsoren
2,727 Points

Dictionary order

Hi,

Is there any way to contorl the order of the key & value in dictionary? i created two lists and i am mapping them to one dictionary. the problem is that i can't control the order of the insertion. this is the expected out:

{'i': 2, 'do': 1, 'it': 1, 'sam': 1, 'like': 1, 'not': 1, 'am': 1}

and this is my output:

{'do': 1, 'like': 1, 'sam': 1, 'i': 2, 'am': 1, 'it': 1, 'not': 1}

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(key_list):
    value_list = []
    my_dict = {}
    key_list = key_list.split()

    for lower in range(len(key_list)):
        key_list[lower] = key_list[lower].lower()

    for i in range(len(key_list)):
        value_list.append(key_list.count(key_list[i]))
    print(value_list)
    print(key_list)

    for num in range(len(key_list)):
        my_dict[key_list[num]] = value_list[num]
    print(my_dict)

word_count("I do not like it Sam I Am")

Thanks.

1 Answer

Christopher Shaw
seal-mask
PLUS
.a{fill-rule:evenodd;}techdegree seal-36
Christopher Shaw
Python Web Development Techdegree Graduate 58,236 Points

Dictionarys are not ordered. From the docs: It is best to think of a dictionary as an unordered set of key: value pairs https://docs.python.org/3/tutorial/datastructures.html#dictionaries

If you want an order dictionary, you would need to use OrderDict. But this is not required for this challange.

from collections import OrderedDict