Nihar Ranjan Roy <niharranjan...@gmail.com> added the comment: Thank you dennis. This is helpful.
With Regards Nihar Ranjan Roy Mobile: +91 9810 977 908 ___________________ On Thu, May 27, 2021 at 10:47 AM Dennis Sweeney <rep...@bugs.python.org> wrote: > > Dennis Sweeney <sweeney.dennis...@gmail.com> added the comment: > > An attribute name starting with a single underscore is just a warning to > users of your code that "this attribute is supposed to be private, access > it at your own risk." > > Everything below is from > https://docs.python.org/3/tutorial/classes.html?highlight=mangle#private-variables > : > > “Private” instance variables that cannot be accessed except from inside an > object don’t exist in Python. However, there is a convention that is > followed by most Python code: a name prefixed with an underscore (e.g. > _spam) should be treated as a non-public part of the API (whether it is a > function, a method or a data member). It should be considered an > implementation detail and subject to change without notice. > > Since there is a valid use-case for class-private members (namely to avoid > name clashes of names with names defined by subclasses), there is limited > support for such a mechanism, called name mangling. Any identifier of the > form __spam (at least two leading underscores, at most one trailing > underscore) is textually replaced with _classname__spam, where classname is > the current class name with leading underscore(s) stripped. This mangling > is done without regard to the syntactic position of the identifier, as long > as it occurs within the definition of a class. > > Name mangling is helpful for letting subclasses override methods without > breaking intraclass method calls. For example: > > ... > > ---------- > > _______________________________________ > Python tracker <rep...@bugs.python.org> > <https://bugs.python.org/issue44244> > _______________________________________ > ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44244> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
