[3.15] gh-153741: Harden IDLE GUI tests for newer Tk and display scaling (GH-153742)#154404

terryjreedy merged 1 commit into

python:3.15python/cpython:3.15from

miss-islington:backport-a2581eb-3.15miss-islington/cpython:backport-a2581eb-3.15Copy head branch name to clipboard