Issue #15041: update "see also" list in tkinter documentation.

Doc/library/tkinter.rst

@@ -19,12 +19,27 @@ this should open a window demonstrating a simple Tk interface.
       The Python Tkinter Topic Guide provides a great deal of information on using Tk
       from Python and links to other sources of information on Tk.
 
-   `An Introduction to Tkinter <http://www.pythonware.com/library/an-introduction-to-tkinter.htm>`_
-      Fredrik Lundh's on-line reference material.
+   `TKDocs <http://www.tkdocs.com/>`_
+      Extensive tutorial plus friendlier widget pages for some of the widgets.
 
-   `Tkinter reference: a GUI for Python <http://infohost.nmt.edu/tcc/help/pubs/lang.html>`_
+   `Tkinter reference: a GUI for Python <http://infohost.nmt.edu/tcc/help/pubs/tkinter/>`_
       On-line reference material.
 
+   `Tkinter docs from effbot <http://effbot.org/tkinterbook/>`_
+      Online reference for tkinter supported by effbot.org.
+
+   `Tcl/Tk manual <http://www.tcl.tk/man/tcl8.5/>`_
+      Official manual for the latest tcl/tk version.
+
+   `Programming Python <http://www.amazon.com/Programming-Python-Mark-Lutz/dp/0596158106/>`_
+      Book by Mark Lutz, has excellent coverage of Tkinter.
+
+   `Modern Tkinter for Busy Python Developers <http://www.amazon.com/Modern-Tkinter-Python-Developers-ebook/dp/B0071QDNLO/>`_
+      Book by Mark Rozerman about building attractive and modern graphical user interfaces with Python and Tkinter.
+
+   `An Introduction to Tkinter <http://www.pythonware.com/library/an-introduction-to-tkinter.htm>`_
+      Fredrik Lundh's on-line reference material.
+
    `Python and Tkinter Programming <http://www.amazon.com/exec/obidos/ASIN/1884777813>`_
       The book by John Grayson (ISBN 1-884777-81-3).
 

Misc/NEWS

@@ -98,6 +98,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #15041: update "see also" list in tkinter documentation.
+
 - Issue #15402: An issue in the struct module that caused sys.getsizeof to
   return incorrect results for struct.Struct instances has been fixed.
   Initial patch by Serhiy Storchaka.