@@ -43,7 +43,7 @@ applications, the applications will not be truly stand-alone, as the application
4343will still need the Tcl and Tk libraries.
4444
4545One solution is to ship the application with the Tcl and Tk libraries, and point
46- to them at run-time using the :envvar: `TCL_LIBRARY ` and :envvar: `TK_LIBRARY `
46+ to them at run-time using the :envvar: `! TCL_LIBRARY:envvar: `! TK_LIBRARY
4747environment variables.
4848
4949Various third-party freeze libraries such as py2exe and cx_Freeze have
@@ -55,16 +55,17 @@ Can I have Tk events handled while waiting for I/O?
5555
5656On platforms other than Windows, yes, and you don't even
5757need threads! But you'll have to restructure your I/O
58- code a bit. Tk has the equivalent of Xt's :c:func: `XtAddInput() ` call, which allows you
58+ code a bit. Tk has the equivalent of Xt's :c:func: `! XtAddInput
5959to register a callback function which will be called from the Tk mainloop when
6060I/O is possible on a file descriptor. See :ref: `tkinter-file-handlers `.
6161
6262
6363I can't get key bindings to work in Tkinter: why?
6464-------------------------------------------------
6565
66- An often-heard complaint is that event handlers bound to events with the
67- :meth: `bind ` method don't get handled even when the appropriate key is pressed.
66+ An often-heard complaint is that event handlers :ref: `bound <bindings-and-events >`
67+ to events with the :meth: `!bind ` method
68+ don't get handled even when the appropriate key is pressed.
6869
6970The most common cause is that the widget to which the binding applies doesn't
7071have "keyboard focus". Check out the Tk documentation for the focus command.
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