駝峰轉底線.py

def convert(value, sep):
    list_value = list(value)
    big = [chr(i + 65) for i in range(26)]
    _return_value = list()

    for index, i in enumerate(list_value):
        t = i

        if i in big and index is not 0:
            t = sep + i.lower()
        elif i in big and index is 0:
            t = i.lower()

        _return_value.append(t)

    return_value = "".join(_return_value)

    return return_value