What are some examples of global variables in Python?

What are some examples of global variables in Python?

Global variables in Python are defined outside of functions and can be accessed anywhere in the code. For example, you can define a variable like x = 10 at the top of your script, and it can be accessed in any function.

Can you show me a code snippet that uses a global variable?

Sure! Here's a simple example:

x = 5  # Global variable

def add_to_global(y):
    return x + y

result = add_to_global(10)
print(result)  # Output will be 15

What happens if I try to modify a global variable inside a function?

If you want to modify a global variable inside a function, you need to use the global keyword. For example:

x = 5

def modify_global():
    global x
    x = 10

modify_global()
print(x)  # Output will be 10