Editing Name mangling (section)

=== Python ===
In [[Python (programming language)|Python]], mangling is used for class attributes that one does not want subclasses to use<ref>{{Cite web|url=https://www.python.org/dev/peps/pep-0008/#designing-for-inheritance|title = PEP 8 -- Style Guide for Python Code}}</ref> which are designated as such by giving them a name with two or more leading underscores and no more than one trailing underscore. For example, {{code|__thing}} will be mangled, as will {{code|___thing}} and {{code|__thing_}}, but {{code|__thing__}} and {{code|__thing___}} will not. Python's runtime does not restrict access to such attributes, the mangling only prevents name collisions if a derived class defines an attribute with the same name.

On encountering name mangled attributes, Python transforms these names by prepending a single underscore and the name of the enclosing class, for example:

<syntaxhighlight lang="pycon">
>>> class Test:
...     def __mangled_name(self):
...         pass
...     def normal_name(self):
...         pass
>>> t = Test()
>>> [attr for attr in dir(t) if "name" in attr]
['_Test__mangled_name', 'normal_name']
</syntaxhighlight>