How do I check if a variable exists?

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Music by Eric Matyas
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Track title: Puzzle Game 2 Looping

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Chapters
00:00 Question
00:24 Accepted answer (Score 2179)
00:49 Answer 2 (Score 166)
02:43 Answer 3 (Score 87)
02:59 Answer 4 (Score 27)
03:34 Thank you

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Full question
https://stackoverflow.com/questions/8432...

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Tags
#python #exception #variables

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