The rules of reference

[Tom Hanks]

Gerson.Kurz at t-online.de (Gerson Kurz) wrote in message news:<mailman.1036093925.14342.python-list at python.org>...

[snip]
> As you can see, the assignment "num = 60" is called *after* "import b". I
> know that "import b" does a recursive "import a", but *that is already done*
                                                        ^^^^^^^^^^^^^^^^^^^^^^
> at the time I do the "num=60" bit. So this is what I don't get.

The above underlined section is incorrect. Running "a.py" does not import 
module "a", instead it modifies the module "__main__".

I hope this helps,

Tom Hanks.