Function _is_single_bit

Lib/enum.py:91–98

True if only one bit set in num (should be an int)

(num)

        return False

def _is_single_bit(num):
    """
    True if only one bit set in num (should be an int)
    """
    if num == 0:
        return False
    num &= num - 1
    return num == 0

def _make_class_unpicklable(obj):
    """