def to_snake_case ( text ) : s1 = re . sub ( '(.)([A-Z][a-z]+)' , r'\1_\2' , text ) return re . sub ( '([a-z0-9])([A-Z])' , r'\1_\2' , s1 ) . lower ( )
python replace case sensitive
Convert to snake case .
def to_snake_case(text):
    """Convert to snake case.

    :param str text:
    :rtype: str
    :return:
    """
    s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', text)
    return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()