[Tkinter-discuss] multithreading

[Craig Allen]

Anyone that's interested,

I have a command line application which I want to run as such, with a
flag that alternately puts up a pretty monitoring GUI that shows in more
detail what's going on.  So fine, I run the Tk mainloop in a background
thread. I've read and learned myself you cannot make your Tk calls
outside this thread. Fine.

But as this is a bit of an extra feature I have not been particularly
careful, and since the command line can execute more than one sequence
of it's processing, it wants to open up a new pair of windows every
time.  As I"m just hacking this together (the pretty Tk interface is an
addition, not really required to be build) to do this I call the master
object which is a threading object... i.e. another thread is started,
and this other thread has a mainloop call in it.  It all works fine, but
I'm sort of of the impression I'm not supposed to do this, that there
should only be one thread running a mainloop call.  

Is that true, is this evil?

Any comments appreciated.

craig
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