Module question

[Gary Herron]

Tuvas wrote:

>Could I just do this then?
>
>from foo import x?
>  
>
Yes, you can do it that way.  (f you have your modules importing each 
other in a circular fashion, then this can cause trouble as x may not be 
defined yet, so best to avoid that case.)

>One more question now that I've tried this. In my main function, I have
>alot of init code. I don't want this code to be re-ran when the second
>module imports the first. Is there any way around this? Thanks!
>
>  
>
It won't be run twice.  Module import is a two phase thing:

1.  Read/compile the module and run it, creating a module object.  (This 
is done only once -- the first time a module is  imported.)

2. Bind values in the importing code to the module or its attributes.  
(This is done every time a module is imported.)

So... Your init code will be executed once -- in phase 1, no matter how 
many times an import causes phase two to be performed.

Gary Herron