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

Guido van Rossum guido@python.org
Tue, 03 Dec 2002 07:07:53 -0500

> > 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 dummythread is an attempt > to reduce this clutter.

the problem (if there is one) is that the proposed integration may break code that uses the above pattern.

I don't propose to automate this. I propose this:

try: import threading except ImportError: import dummy_threading as threading

deadlocks doesn't always happen when you want them to, so it may not be obvious to developers and testers that their program isn't as reliable as it was before the upgrade.

So require testing on a system that has threads.

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