Ned Deily added the comment:
I am im favor of adding documentation for the existing tkinter TclVerion and
TkVersion attributes to the tkinter section of the Standard Library reference
as well as documenting a form of tkinter.Tcl().call('info', 'patchlevel')
and/or tkinter.Tk().call('info', 'patchlevel') to return the full patchlevel
string. These spellings will work with every supported version of tkinter,
Tcl, Tk, and platform. Note that, while Tcl and Tk do have independent patch
level strings, Tcl and Tk should normally always be installed at the same patch
level; AFAIK, they are always released simultaneously upstream and are intended
to be installed together. If one were to add Tcl and Tk patchlevel attributes
to tkinter, the code should be careful to dynamically get patchlevels via the
equivalent of the above calls, and should not use the compile-time strings from
Tcl/Tk include files tcl.h and tk.h, since on many platforms Tcl and Tk are
installed as shared libraries and can be updated to a new patch l
evel independently of the Python distribution.
As far as documenting the exact version of Tcl/Tk used in building the Python
provided by a python.org Windows installer, that's a special case of
documenting the versions of all third-party libraries used in the build. I
believe all of the information is available in the source tree PCBuild project
files: Steve or Zach should be able to address whether that info is and/or
should be available as part of the install process. Adding all of that info to
the release download page on python.org would be overkill as would a new PEP or
a modification to PEP 101, IMO. We do include general license information for
possibly-included third-party libraries at the end of the license page in the
release documentation set (https://docs.python.org/3/license.html) but,
correctly, do not include specific version numbers there. As a data point, for
the python.org OS X installers, we now do include the specific version numbers
of included libraries when producing the installer license file displayed
as part of the installation process on OS X, with a link to the documentation
set license page for the full text of the third-party licenses (see the
attached jpg for an example).
----------
Added file: http://bugs.python.org/file39137/osx_installer_license_example.jpg
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