Question

Python code

define a function car that takes 'swift' as a parameter

function should count how many letters in the string

function should return a dictionary where key is lower case alpha caracter and value is the number of times that character appears in sentence.

ex- input- that big car is so expensive

output- 't':1, 'h':1, 'a':2, 'b':1, 'i':3,......

Answer 1

def car(swift):
    d = {}
    for ch in swift:
        ch = ch.lower()
        if ch.isalpha():
            if ch not in d:
                d[ch] = 0
            d[ch] += 1
    return d


print(car("that big car is so expensive"))