[issue21877] External.bat and pcbuild of tkinter do not match.

[Terry J. Reedy]

Terry J. Reedy  added the comment:

The fixes, attached to other issues, works flawlessly for me.

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[issue21877] External.bat and pcbuild of tkinter do not match.

[Zachary Ware]

Zachary Ware  added the comment:

I believe this has been fixed some time in the last few years; Terry, please 
reopen this if I've missed something.

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resolution:  -> fixed
stage: needs patch -> resolved
status: open -> closed

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[issue21877] External.bat and pcbuild of tkinter do not match.

[Terry J. Reedy]

Terry J. Reedy added the comment:

I am quite aware that the two searches are different.  tcl8xyz.dll and 
tkxyz.dll must be copied from ../tcltk/bin to pcbuild while init.tcl must be 
left in ../tcltk/lib/tcl8.x, where x is, now, '5' or '6'.  Since compiling 
tcl/tk clears tcltk/, it is impossible to simultaneously run 2.7 which requires 
tcltk/lib/tcl8.5/init.tcl and 3.4/5 which require tcltk/lib/tcl8.6/init.tcl.

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[issue21877] External.bat and pcbuild of tkinter do not match.

[Terry J. Reedy]

Terry J. Reedy added the comment:

Since the two .dlls must now be copied manually (still undocumented?) for 
tkinter to work, I fail to see the problem with having the copying done 
automatically in external.bat right after the compile that creates them.

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[issue21877] External.bat and pcbuild of tkinter do not match.

[Mark Lawrence]

Changes by Mark Lawrence breamore...@yahoo.co.uk:


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[issue21877] External.bat and pcbuild of tkinter do not match.

[Terry J. Reedy]

New submission from Terry J. Reedy:

dir/pydir/Tools/buildbot/external.bat downloads tcl/tk 8.y.z into dir/tcl-8.y.z 
and dir/tk-8.y.x and compiles them into dir/tcltk. Of critical importance are 
dir/tcltk/bin/tcl8yg.dll and dir/tcltk/bin/tk8yg.dll (where y is currently 5 or 
6.

dir/pydir/pcbuild/_tkinter.vcxprog compiles _tkinter is such a way that it 
looks for the two dlls 'everywhere' (in pcbuild itself and 5-10 other, 
non-existent directories) other than where they are.

The current manual fix, reported a year ago on core-mentorship list, is to copy 
the two .dlls into pcbuild. This should be done by external.bat.

A possible alternate fix would be to revise _tkinter.vcxproj so that _tkinter 
looks for the .dlls where they are. However, since multiple tcl/tk versions are 
compiled into /tcltk, this would break installations that use one 'dir' for 
multiple 'pydir's, as shown in the devguide. Currently, the .dlls must be 
copied into pcbuild before they get overwritten by another version.

--
components: Build
messages: 221737
nosy: steve.dower, terry.reedy, zach.ware
priority: normal
severity: normal
stage: needs patch
status: open
title: External.bat and pcbuild of tkinter do not match.
type: behavior
versions: Python 2.7, Python 3.4, Python 3.5

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[issue21877] External.bat and pcbuild of tkinter do not match.

[Zachary Ware]

Zachary Ware added the comment:

 compiles _tkinter is such a way that it looks for the two dlls 'everywhere' 
 (in pcbuild itself and 5-10 other, non-existent directories)

I think you're confusing the finding of the tcl/tk DLLs with the finding of 
init.tcl; the DLLs are searched for on PATH (as I understand it, just like any 
other DLL), while init.tcl is searched for in several places hard coded deep in 
bowels of Tcl (see #20035).

Python 3.5 (default branch) builds Tcl/Tk as part of the build solution rather 
than as part of external*.bat, and copies the DLLs to the output directory as 
part of the new system.  3.4 and 2.7 could be fixed to copy the DLLs as part of 
external*.bat, but will have issues similar to #21059 without some kind of fix 
like #20035 (which is currently only targetting default branch).

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