Using and Accessing Global Variables in Python Functions

Ah, this is a pretty common situation in Python programming. To use a Python global variable inside a function, you’ll need the global keyword. It signals to Python that you’re not creating a new local variable but are referring to the global one. Here’s a quick example:

x = 10  # Global variable

def modify_variable():
    global x  # Referencing the global variable
    x = 20  # Modifies the global variable

modify_variable()
print(x)  # Output will be 20

By declaring x as global, any changes made inside the function reflect on the global x.