Count number of each vowels in string

Author: avinashn

count_vowels.py

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+__author__ = 'Avinash'
+
+
+# Python3 program to count vowels in a string
+
+# string of vowels
+vowels = 'aeiou'
+
+input_str = input("Enter a string: ")
+
+# make input string case insensitive
+input_str = input_str.casefold()
+
+# make a dictionary with each vowel a key and value 0
+vowels_count = {}.fromkeys(vowels, 0)
+
+# count the number of each vowels
+for letter in input_str:
+    if letter in vowels_count:
+        vowels_count[letter] += 1
+
+print(vowels_count)