Python Tutorial » Python Scope

A variable is only available from inside the region it is created called scope.

Local Scope
A variable created inside a function can only be used inside that function.



Variable y is not available outside the function, but it is available for any function inside the function

Global Keyword

The "global' (without quotes) keyword makes the variable global.
In the next program, three different variables "y" are defined in separate namespaces and accessed accordingly.





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Python Scope - python