Advanced freeCodeCamp • learn-list-comprehension-by-building-a-case-converter-program

Step 7: You need to handle the characters that are...

Challenge Overview

You need to handle the characters that are already in lowercase by adding them to the list of converted characters.

Right after the if statement within the for loop, add an else clause and use the .append() method to add char to the snake_cased_char_list variable.

💡 View Solution

def convert_to_snake_case(pascal_or_camel_cased_string):
    snake_cased_char_list = []
    for char in pascal_or_camel_cased_string:
        if char.isupper():
            converted_character = '_' + char.lower()
            snake_cased_char_list.append(converted_character)
        else:
            snake_cased_char_list.append(char)