del an imported Class at EOF... why?

[alex23]

Steven D'Aprano <ste... at REMOVE.THIS.cybersource.com.au> wrote:
> import alienmodule
>
> class MyClass(alienmodule.AlienClass):
>     do_stuff()
>
> rather than:
>
> from alienmodule import AlienClass
>
> class MyClass(AlienClass):
>     do_stuff()
>
> del AlienClass

The original developer may also have been unaware of the ability to
limit a * import through the use of __all__.

    from alienmodule import AlienClass

    __all__ = ['MyClass']

    class MyClass(AlienClass):
        do_stuff()

Of course, this is really only useful if you're doing "from module
import *" which is generally discouraged inside actual code.