Kuidas hallata globaalmuutuja ulatust, töötades kahe funktsiooniga Pythonis?

In Python, a global variable is declared outside of functions and is available for reading inside functions by default. To modify a global variable inside a function, the global keyword must be used.

Example:

x = 10  # global variable

def func1():
    global x
    x = 20  # changes the global variable

def func2():
    print(x)  # prints the current value of the global variable

func1()
func2()  # will print 20

If global is not used, then within the function, assigning a value creates a local variable with the same name, and the global variable remains unchanged.