What is function scope in Python?

What is function scope in Python?

Function scope in Python refers to the visibility of variables defined within a function. Variables declared inside a function are not accessible outside of it.

Can you give me an example of function scope?

Sure! Here's a simple example:

def my_function():
    x = 10  # x is local to my_function
    print(x)

my_function()  # This will print 10
print(x)  # This will raise an error because x is not defined outside the function.

What happens if I try to access a variable outside its function?

If you try to access a variable defined inside a function from outside that function, you'll get a NameError because the variable is not in the global scope.

Are there any exceptions to this rule?

Yes, if you declare a variable as global using the global keyword, you can access and modify it from within a function.