Is python memory shared between theads?

[Grant Edwards]

On 2006-12-01, Wesley Henwood <wesleyhenwood at hotmail.com> wrote:

> So I declare a variable named A in thread1, in script1.py.  I assign
> the value of 2.5 to A.  I then run script2.py in thread2.  Script2.py
> assigns the value of 5.5 to a variable named A.  Now, when thread1
> resums execution, I see that A = 5.5, rather than 2.5 as I expected.
>
> Is this normal behavior?

Yes.  Threads share global namespace.  From a CPU point of
view, they share a single address space.

> Based on the little documentation I have been able to find on
> this topic, it is normal behavior.  The only way to use
> same-named variables in scripts is to have them run in a
> different process, rather than different threads.

Or make them local variables.

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Grant Edwards                   grante             Yow!  If I felt any more
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