Issue 4104: Namespace inconsistency - Python tracker

Hello

See the following code and comments for explanation ;) (Try it with
interactive mode)

---
>>> class A:
...     class B:
...         pass

>>> A
<class __main__.A at 0x...>
>>> A.B
<class __main__.B at 0x...>
>>> B
NameError: B is not defined
---

This seems to be inconsistent, as Python represents A.B as __main__.B,
but B is not accessable from __main__

Maybe this could be better:
---
>>> A.B
<class __main__.A.B at 0x...>
                  ^
---

This is because type_repr looks at the __module__ attribute to determine
the location. Fixing this would probably require adding a
__nestedclass__ attribute. However, nested classes aren't used very
much, so it's not urgent by any means.

I'm tempted to close this as "won't fix".

Me too. There are too many cases where class statements can be executed
to get this right.

I consider the request invalid.  Continue the example with
B=A.B
B
The repr of an object cannot now and should not depend on the access path.
=or=
class C: pass
class D: pass
D
C.D = D
C.D
Same comment.