Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #4576

Re: Why do directly imported variables behave differently than those attached to imported module?

Show all headers | View raw

On Wed, May 4, 2011 at 2:57 AM, Chris Rebert <clp2@rebertia.com> wrote:
> from foo import *
>
> can be thought of as essentially doing:
>
> import foo
> set = foo.set
> var = foo.var
> del foo

Here's a side point. What types will hold a reference to the enclosing
module (or at least its dictionary)? Would it be possible to use a
from import to load a module, then "lose" the module even though
you're using objects from it?

I am guessing that a function or class will hold such a reference,
because otherwise it would be a bit awkward for them to use any sort
of module-level state. Or do they not, and instead go look for their
module in sys.modules?

Chris Angelico

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Why do directly imported variables behave differently than those attached to imported module? Dun Peal <dunpealer@gmail.com> - 2011-05-03 09:31 -0700
  Re: Why do directly imported variables behave differently than those attached to imported module? Chris Rebert <clp2@rebertia.com> - 2011-05-03 09:57 -0700
  Re: Why do directly imported variables behave differently than those attached to imported module? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-04 03:57 +1100
  Re: Why do directly imported variables behave differently than those attached to imported module? Mel <mwilson@the-wire.com> - 2011-05-03 13:00 -0400
  Re: Why do directly imported variables behave differently than those attached to imported module? Terry Reedy <tjreedy@udel.edu> - 2011-05-03 13:13 -0400
  Re: Why do directly imported variables behave differently than those attached to imported module? harrismh777 <harrismh777@charter.net> - 2011-05-03 12:24 -0500
    Re: Why do directly imported variables behave differently than those attached to imported module? Dun Peal <dunpealer@gmail.com> - 2011-05-03 11:51 -0700
      Re: Why do directly imported variables behave differently than those attached to imported module? Dun Peal <dunpealer@gmail.com> - 2011-05-03 12:23 -0700
        Re: Why do directly imported variables behave differently than those attached to imported module? Daniel Kluev <dan.kluev@gmail.com> - 2011-05-04 06:55 +1100
  Re: Why do directly imported variables behave differently than those attached to imported module? Chris Angelico <rosuav@gmail.com> - 2011-05-04 07:47 +1000
    Re: Why do directly imported variables behave differently than those attached to imported module? Duncan Booth <duncan.booth@invalid.invalid> - 2011-05-04 08:44 +0000
  Re: Why do directly imported variables behave differently than those attached to imported module? Chris Rebert <clp2@rebertia.com> - 2011-05-03 15:11 -0700

csiph-web