unable to read the __main__ namespace

[Chris Rebert]

On Sun, Dec 13, 2009 at 3:20 AM, vsoler <vicente.soler at gmail.com> wrote:
> I'm learning Python, and I am very fond of it.
>
> Using Python 2.6
>
> I am able to list all the names in a class namespace:
>
> class abc: pass
> abc.a1=7
> abc.a2='Text'
>
> print abc.__dict__.keys()

That is more simply written as:

print dir(abc)

> a) However, I do not know how to read the __main__ namespace
>
> print __main__.__dict__.keys()    # Just does not work

__main__ is not used or set and has no special meaning to the Python
interpreter. It's true that __name__ == "__main__" in the body of the
main module, but you can't actually access it by that name.

> b) How do i read an imported module namespace?

import module
print dir(module)

> c) How could I possibly list the names and contents of the namespace
> of my python session?

print dir()

I'd advise reading the docs on it:
http://docs.python.org/library/functions.html#dir

Cheers,
Chris
--
http://blog.rebertia.com