Add Examples for private name mangling

Documentation

Documentation

The page at https://docs.python.org/3/tutorial/classes.html does not contain an example to explain private name mangling under the "Private Variables" section. Adding a simple example that explains the change in variable and method names could be helpful.

Linked PRs

• gh-148423: Add Examples for Private Mangling #148424

[picnixz]

There is a link to https://docs.python.org/3/reference/expressions.html#private-name-mangling. No need for more examples.

[picnixz]

There is also an example already:

class Mapping:
    def __init__(self, iterable):
        self.items_list = []
        self.__update(iterable)

    def update(self, iterable):
        for item in iterable:
            self.items_list.append(item)

    __update = update   # private copy of original update() method

class MappingSubclass(Mapping):

    def update(self, keys, values):
        # provides new signature for update()
        # but does not break __init__()
        for item in zip(keys, values):
            self.items_list.append(item)