Merge pull request python#6 from native-api/roseman_6

python#7287 (comment)

Author: roseman

Doc/library/tkinter.rst

@@ -52,8 +52,8 @@ Tcl
    (see `Threading model`_ for details).
 
 Tk
-   Tk is a module that can be loaded into a Tcl interpreter instance. It adds
-   Tcl commands (implemented in C) to create and manipulate GUI widgets. Each
+   Tk is a `Tcl package <http://wiki.tcl.tk/37432>`_ implemented in C
+   that adds custom commands to create and manipulate GUI widgets. Each
    :class:`Tk` object embeds its own Tcl interpreter instance with Tk loaded into
    it. Tk's widgets are very customizable, though at the cost of a dated appearance.
    Tk uses Tcl's event queue to generate and process GUI events. Note