Do you use the “global” statement in Python? [closed]

Answer 1

I've used it in situations where a function creates or sets variables which will be used globally. Here are some examples:

discretes = 0
def use_discretes():
    #this global statement is a message to the parser to refer 
    #to the globally defined identifier "discretes"
    global discretes
    if using_real_hardware():
        discretes = 1
...

or

file1.py:
    def setup():
        global DISP1, DISP2, DISP3
        DISP1 = grab_handle('display_1')
        DISP2 = grab_handle('display_2')
        DISP3 = grab_handle('display_3')
        ...

file2.py:
    import file1

    file1.setup()
    #file1.DISP1 DOES NOT EXIST until after setup() is called.
    file1.DISP1.resolution = 1024, 768