Underline in Python

_xxx This means that this is a protected member (property or method), it cannot be imported with the From module import, other aspects and public access;

__xxx This means that this is a private member and it cannot be accessed directly like a public member (such as a direct print-a modification), and, of course, can be accessed through the object name. _ Class name __xxx Such a way can be accessed;

__xxx__ This means that this is a special member, the so-called special, that is, for example __init__ () __del__ () __call__ () These Niubi to coax the special method

Underline in Python