24.4. Event modifiers

The modifier names that you can use in event sequences include:

`Alt`	True when the user is holding the alt key down.
`Any`	This modifier generalizes an event type. For example, the event pattern `"<Any-KeyPress>"` applies to the pressing of any key.
`Control`	True when the user is holding the control key down.
`Double`	Specifies two events happening close together in time. For example, `<Double-Button-1>` describes two presses of button 1 in rapid succession.
`Lock`	True when the user has pressed shift lock.
`Shift`	True when the user is holding down the shift key.
`Triple`	Like `Double`, but specifies three events in rapid succession.

You can use shorter forms of the events. Here are some examples:

"<1>" is the same as "<Button-1>".
"x" is the same as "<KeyPress-x>".

Note that you can leave out the enclosing "<…>" for most single-character keypresses, but you can't do that for the space character (whose name is "<space>") or the less-than (<) character (whose name is "<less>").

Tkinter reference: a GUI for Python

24.4. Event modifiers