List of All Tkinter Events

Question

In Python tkinter module, <Button-1>, <Button-2> and <Button-3> are used to identify mouse button clicks for left, middle and right buttons respectively.

Likewise, <KeyPress-Return> is used for the return key press.

Where can I find a list of all such events, including the names for the various keyboard keys?

Tcl bind manual does not have those.

Answer 1

A general list for Bindings and Events can be found on effbot.org or in the docs provided by New Mexico Tech whereas the name of several keys are listed here in addition to the original documentation.

Here's a summary of the most common events with some keypress names explained:

<Button-1>        Button 1 is the leftmost button, button 2 is the middle button                   (where available), and button 3 the rightmost button.                    <Button-1>, <ButtonPress-1>, and <1> are all synonyms.                    For mouse wheel support under Linux, use Button-4 (scroll                   up) and Button-5 (scroll down)  <B1-Motion>       The mouse is moved, with mouse button 1 being held down (use                   B2 for the middle button, B3 for the right button).  <ButtonRelease-1> Button 1 was released. This is probably a better choice in                   most cases than the Button event, because if the user                   accidentally presses the button, they can move the mouse                   off the widget to avoid setting off the event.  <Double-Button-1> Button 1 was double clicked. You can use Double or Triple as                   prefixes.  <Enter>           The mouse pointer entered the widget (this event doesn’t mean                   that the user pressed the Enter key!).  <Leave>           The mouse pointer left the widget.  <FocusIn>         Keyboard focus was moved to this widget, or to a child of                   this widget.  <FocusOut>        Keyboard focus was moved from this widget to another widget.  <Return>          The user pressed the Enter key. For an ordinary 102-key                   PC-style keyboard, the special keys are Cancel (the Break                   key), BackSpace, Tab, Return(the Enter key), Shift_L (any                   Shift key), Control_L (any Control key), Alt_L (any Alt key),                   Pause, Caps_Lock, Escape, Prior (Page Up), Next (Page Down),                   End, Home, Left, Up, Right, Down, Print, Insert, Delete, F1,                   F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, Num_Lock, and                   Scroll_Lock.  <Key>             The user pressed any key. The key is provided in the char                   member of the event object passed to the callback (this is an                   empty string for special keys).  a                 The user typed an “a”. Most printable characters can be used                   as is. The exceptions are space (<space>) and less than                   (<less>). Note that 1 is a keyboard binding, while <1> is a                   button binding.  <Shift-Up>        The user pressed the Up arrow, while holding the Shift key                   pressed. You can use prefixes like Alt, Shift, and Control.  <Configure>       The widget changed size (or location, on some platforms). The                   new size is provided in the width and height attributes of                   the event object passed to the callback.  <Activate>        A widget is changing from being inactive to being active.                   This refers to changes in the state option of a widget such                   as a button changing from inactive (grayed out) to active.   <Deactivate>      A widget is changing from being active to being inactive.                   This refers to changes in the state option of a widget such                   as a radiobutton changing from active to inactive (grayed out).  <Destroy>         A widget is being destroyed.  <Expose>          This event occurs whenever at least some part of your                   application or widget becomes visible after having been                   covered up by another window.  <KeyRelease>      The user let up on a key.  <Map>             A widget is being mapped, that is, made visible in the                   application. This will happen, for example, when you call the                   widget's .grid() method.  <Motion>          The user moved the mouse pointer entirely within a widget.  <MouseWheel>      The user moved the mouse wheel up or down. At present, this                   binding works on Windows and MacOS, but not under Linux.  <Unmap>           A widget is being unmapped and is no longer visible.  <Visibility>      Happens when at least some part of the application window                   becomes visible on the screen. 

Answer 2

Try looking at the definition of class EventType in the source code for the module tkinter/__init__.py.

Typically for me, this modules shows up as a tab in my Wing IDE if an exception occurs.