Answer to Question #167917 in Python for srikanth

Question

Given a string in camel case, write a python program to convert the given string from camel case to snake case.
Input

The input will be a single line contain a string.
Output

The output should contain the given word in snake case.
Explanation

For example, if the given word is "PythonLearning" in camel case, your code should print given word in snake case "python_learning".
Sample Input 1
PythonLearning
Sample Output 1
python_learning

Sample Input 2
CamelCase
Sample Output 2
camel_case

Answer 1

def convert(word):
    first = True
    for ch in word:
        if first:
            res = ch.lower()
        elif ch.isupper():
            res += '_' + ch.lower()
        else:
            res += ch
        first = False
    return res


if __name__ == '__main__':
    word = input().strip()
    snake = convert(word)
    print(snake)