Say in your game that pressing the modifying key left shift in addition to the normal key 'w' calls a moveUpFast() method which moves the player very quickly (like sprinting). To do this, you would need to check both the keyboard EventType's type attribute and the mod attribute. An example is shown below.
```Python
for event in pygame.event.get() #this block iterates through the queue
	if event.EventType.type == pygame.KEYDOWN: #if the event has type keydown
		if event.EventType.type == pygame.K_w: #if event key attribute is equal to w
			if event.EventType.mod == pygame.KMOD_LSHIFT
				moveUpFast() #call moveUpFast()!
			else:
				moveUp()
```

University of Michigan - Ann Arbor

Keyboard mods, short for modifiers, are an attribute of the EventType object stored in a keyboard event. They represent the modifying key, if any, pressed by the user. Modifying keys are keys like left shift or left control which modify the output of a normal keypress. These are denoted by 'KMOD_' followed by the key name, like 'KMOD_LSHIFT' for left shift. 

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