Use global key word to reference outside global variables : Global « Language Basics « Python

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Python » Language Basics » Global Screenshots  Use global key word to reference outside global variables X = 88          # global X def func():     global X     X = 99      # global X: outside def func() print X         # prints 99                     Related examples in the same category 1. Demonstrates global variables 2. Introducing globals() 3. Global variables 4. Local and global Scoping example.