no multithreading?

[Fredrik Lundh]

moonseeker at my-deja.com wrote:
> I have understood that the python interpreter switches to another thread if a
> fixed amount of python commands is completed. Is this true? That means if a
> task hangs on a command (i.e. file open), all tasks are locked?

nope.  python releases the interpreter lock whenever
it calls OS functions that may block.

> What happens if I use sleep() in a task?

http://www.python.org/doc/current/lib/module-thread.html

    "Not all built-in functions that may block waiting for
    I/O allow other threads to run. (The most popular
    ones (time.sleep(), file.read(), select.select()) work
    as expected.)"

http://www.python.org/doc/current/api/threads.html
has more info on how this works.

</F>

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