(description: str)
:param description: must be for Python
:param description: must be for Python
: param description : must be for Python
def parse_python_interpreter(description: str) -> str:
    """
    :param description: must be for Python
    """

    assert is_python_description(description)
    if 'pypy' in description.lower():
        return 'pypy'
    else:
        return 'cpython'
def parse_python_interpreter ( description : str ) -> str : assert is_python_description ( description ) if 'pypy' in description . lower ( ) : return 'pypy' else : return 'cpython'