how to get variable value outside function in python
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title: accessing variable values outside functions in python
introduction:
in python, variables defined within a function are typically local to that function, meaning they are accessible only within the scope of the function. however, there are ways to access the values of variables outside functions. in this tutorial, we'll explore various methods to achieve this, along with code examples.
method 1: return statement
one of the simplest ways to obtain a variable's value from a function is by using the return statement. this allows the function to pass the variable's value back to the caller.
method 2: global keyword
the global keyword can be used to declare a variable as global, making it accessible from both inside and outside functions.
method 3: mutable data types
mutable data types, such as lists or dictionaries, can be modified inside a function, allowing changes to persist outside the function.
conclusion:
accessing variable values outside functions in python involves using methods like the return statement, the global keyword, or modifying mutable data types. each method has its own use cases and considerations. understanding these techniques allows you to design more flexible and modular code.
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