Python Count Occurrences of Each Letter in a String

Python3 Examples

In Python, we can use a dictionary to count the occurrences of each letter in a string. By iterating through each character in the string and using it as the key of the dictionary, the corresponding value is the number of times that character appears.

Code explanation:

1. count_lettersThe function accepts a stringsas a parameter.
2. letter_countis an empty dictionary used to store each character and its occurrence count.
3. for char in s:Iterates over each character in the string.
4. if char in letter_count:Checks whether the character is already in the dictionary. If it exists, increments its corresponding value by 1.
5. else:If the character is not in the dictionary, adds it to the dictionary and initializes the value to 1.
6. Finally, returnsletter_counta dictionary containing each character and its occurrence count.

Output result:

Python3 Examples