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Ok, I didn't check ti in, but I disagree to close it!
Do you think I would supply a patch if there weren't a problem?

The problem was reported to me by an IronPort Python
user who simply had the problem that pdb.runcall
on a given function *does not* run, but always single steps.
Your test doesn't get at the problem, since you don't set a
breakpoint, which is necessary to make it show up!

Here we go:
- write a simple program with some 10 lines
- start it with runcall
- set a breakpoint
- continue

and it will definately step!

With my patch, it works as expected.
Furthermore, Mark's F5 command is documented to
"start the program in the debugger". It never did so.
With the patch, it does.
Let's bring it to the end it deserves.

regards - chris