Generarl programming question.

Sat Apr 11 11:36:08 EDT 2015

Den lördag 11 april 2015 kl. 17:26:03 UTC+2 skrev Steven D'Aprano:
> On 2015年4月12日 01:00 am, jonas.thornvall at gmail.com wrote:
>> > If two functions crossreference eachother back and forth what happen with
> > the local variables.
>> Nothing. They are local to the function that creates them.
>>> > Will there be a new instance of function holding the variables or do they
> > get messed up?
>> No to both of those. You have two functions, each with it's own locals.
>>> def spam():
> colour = "red"
> print("Inside spam: colour is:", colour)
> eggs()
> print("Inside spam after calling eggs: colour is:", colour)
> eggs()
>>> def eggs():
> colour = "yellow"
> print("Inside eggs: colour is:", colour)
>>> Calling spam() gives you this output:
>> py> spam()
> Inside spam: colour is: red
> Inside eggs: colour is: yellow
> Inside spam after calling eggs: colour is: red
> Inside eggs: colour is: yellow
>>> Even if the functions call each other (mutual recursion) each function's
> local variables remain local.
>>>> -- 
> Steven

I don't think it matter butt eggs also calls spam, once more.