[Pyrex] Re: Globals and wrapping Eiffel

[Brandon Long]

On 11/19/03 Bob Ippolito uttered the following other thing:
> 
> Modules don't get unloaded until their reference count goes to zero.  
> "import t" makes two references to t, one in sys.modules and one in the 
> namespace you import it from.  Modules never leave sys.modules 
> implicitly, you have to do that on purpose, which isn't always a good 
> idea -- especially for extension modules.  For example, the interpreter 
> will crash if you unload an extension module containing Objective C 
> code (on OS X, at least).  pydoc is the only "deletes stuff from 
> sys.modules" offender that I'm aware of, but there are surely others.

Reload will also update the sys.modules, but I'm not sure if that
actually works for extension modules.  I don't believe it does.

Brandon
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