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Sometimes when I'm working on a Python file of any kind (I try PyGame, wx, and regular .py console files), I'm able to open two or more instances of the same program. I don't want this to happen, never mind because it eats up memory, but out of programming ethic. I know, "I" don't have to open the program twice, but a user can, and I want to ensure that the user can't, at all. What do I do to make sure there's only one, and just that one, instance of the program open? |
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