[3.15] gh-150836: Mount embedded Tk ZIP in _tkinter on Windows (GH-151562)#151735
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…GH-151562) Tcl/Tk 9 may embed the Tk script library in the Tk DLL on Windows. This embedded library is not found by Tcl by default. Mount the loaded Tk DLL as a zipfs archive before calling Tk_Init(), so Tk can find its embedded tk_library using its existing library discovery logic. Preserve Tk_Init()'s normal path if the library is not embedded. (cherry picked from commit c4eb3ad) Co-authored-by: Jonathan J. Helmus <jjhelmus@gmail.com>
This was referenced Jun 19, 2026
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Tcl/Tk 9 may embed the Tk script library in the Tk DLL on Windows. This embedded library is not found by Tcl by default.
Mount the loaded Tk DLL as a zipfs archive before calling Tk_Init(), so Tk can find its embedded tk_library using its existing library discovery logic.
Preserve Tk_Init()'s normal path if the library is not embedded.
(cherry picked from commit c4eb3ad)
Co-authored-by: Jonathan J. Helmus jjhelmus@gmail.com