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Mon May 11 10:12:24 CEST 2015 · https://mail.python.org/pipermail/python-dev/2015-May/139921.html

On 10 May 2015 at 17:34, Mark Rosenblitt-Janssen
<dreamingforward at gmail.com> wrote:
> Here's something that might be wrong in Python (tried on v2.7):
>
>>>> class int(str): pass
>
>>>> int(3)
> '3'

It's not wrong as such. It is allowed to define your own class that
subclasses a builtin class, and it's allowed to shadow builtin names.
So while this is (obviously) bad practice, it's not wrong.

For a simpler example:

Python 3.4.3 (v3.4.3:9b73f1c3e601, Feb 24 2015, 22:44:40) [MSC v.1600
64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> str
<class 'str'>
>>> str = "Hello"
>>> str
'Hello'

Paul

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