What are global keywords in Python?

What are global keywords in Python?

In Python, global keywords refer to variables that are defined outside of a function and can be accessed anywhere in the code.

Can you give me an example of how to use a global variable?

Sure! Here's a simple example:

x = 10  # global variable

def my_function():
    global x  # declare x as global
    x += 5
    print(x)

my_function()  # This will print 15

What happens if I don't use the global keyword?

If you don't use the global keyword, Python will treat any assignment to that variable as a local variable, which can lead to errors if you try to modify a global variable.

Are there any best practices for using global variables?

Yes, it's generally best to minimize the use of global variables to avoid potential conflicts and make your code easier to understand.