embarrassing class question
pavlovevidence at gmail.com
Thu Oct 21 20:47:26 CEST 2010
On Oct 21, 11:09 am, Brendan <brendandetra... at yahoo.com> wrote:
> Two modules:
> class x(object):
> from x import x
> class y(x):
> Now from the python command line:>>> import y
> >>> dir(y)
> ['__builtins__', '__doc__', '__file__', '__name__', '__package__',
> 'x', 'y']
> I do not understand why class 'x' shows up here.
Because you imported it into the namespace, which is what the import
statement does. dir() shows you what's in the namesace; therefore it
lists x. dir() doesn't care, and can't know, if something was defined
in a namespace, or merely imported.
If it bothers you, you can put "del x" after the class y definition,
but I recommend against doing that in general. If there's a reference
to x inside a function that function will raise an exception if
called, because it expects x to be inside the namespace.
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