[issue4343] tkinter: add _get_master() and use it consistently

Serhiy Storchaka added the comment: I do not think that popping up a root window on first call of Variable() or getboolean() is a good idea. Issue42630 fixed errors in other way. A root window is not automatically created for non-graphic objects (like Variable), instead a RuntimeError with r

[issue4343] tkinter: add _get_master() and use it consistently

Terry J. Reedy added the comment: Serhiy, have your patches on other issues make this one obsolete, or partially so? -- ___ Python tracker ___ ___

[issue4343] tkinter: add _get_master() and use it consistently

Terry J. Reedy added the comment: The new function should be private. I closed #18131 as partially a duplicate of this. It has a couple of other suggested wordings for the exception. I consider the current behavior, in particular the failure of Variable and subclasses when the supposedly opti