[Python-Dev] Can someone look at dummy_thread (#622537)?

[Guido van Rossum]

>     try:
>         import threading
>     except ImportError:
>         threading = None # use non-threaded behaviour

But then you'd have to sprinkle the rest of the code with
"if threading is not None" tests.  Brett's dummy_thread is an attempt
to reduce this clutter.  I've been known to write a mini-version of
dummy_thread.py in code to minimize the clutter; it seems useful to
generalize this.

--Guido van Rossum (home page: http://www.python.org/~guido/)