It would help to strip your code down to the bare minimum that shows the problem, and post that.
From what you've said, it sounds to me like Tk has absolutely nothing to do with any of it. From your wording, it also sounds like you might be trying to use side effects of loading the module to do your calculation, rather than loading the module once and then calling a sub within it to do the calculation.
In reply to Re: Tk: Calling Module More than Once Creates Problems
by Anonymous Monk
in thread Tk: Calling Module More than Once Creates Problems
by Uggles
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