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[3.15] gh-156896: Stop scrubbing tkinter submodules upon idlelib.run import (GH-156915) - #156958
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…mport (python#156915) Instead, invoke the scrubbing within run.main, which is called after the import when starting the IDLE user process. To manually test that scrub_tkinter_submodules is called when proper, start (or restart) Shell, enter `import tkinter; dir(tkinter), and check that that font, messagebox, ttk, and the dialog modules are missing. It is obvious from the code that the function is not otherwise called. To test anyway, continue with `import tkinter.ttk; import idlelib.run; tkinter.ttk` and check for proper output. (cherry picked from commit e50d233)
terryjreedy
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Sep 28, 2026
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Instead, invoke the scrubbing within run.main, which is called after the import when starting the IDLE user process.
This also includes the idlelib.run part of GH-152036, which was not backported and which the scrubbing code in main is based on: missing tkinter submodules are tolerated rather than assuming a fixed set. Lib/idlelib/run.py is now identical in main, 3.15, 3.14 and 3.13.
(cherry picked from commit e50d233)
Co-authored-by: Terry Jan Reedy tjreedy@udel.edu