IDLE - Fix Shell title bar.

[terryjreedy]

An editor connected to a file get a title like 'abc.py - path/to/abc.py (3.11.0)'. (But see #65787.) The Shell starts with 'IDLE Shell 3.11.0' and if saved, adds path and duplicate version. Instead, start with "IDLE Shell - (3.11.0) and insert path if saved.

Default file type is currently .py. I think it should be .txt unless and until add Save Code is added.

Could consider similar with new file. Grep title probably OK. Also note #3701 (unsaved indicator).

Linked PRs

• gh-96491: Deduplicate version in IDLE shell title #139841
• [3.14] gh-96491: Deduplicate version in IDLE shell title (GH-139841) #139931
• [3.13] gh-96491: Deduplicate version in IDLE shell title (GH-139841) #139932

[terryjreedy]

Condensed example from current main after main: IDLE Shell 3.15.0a0 - f:/tem/tem.txt (3.15.0a0). My intention is that the second version, after the added path, not be added.

[StanFromIreland]

I see, I was going off of your older comment:

start with "IDLE Shell - (3.11.0) and insert path if saved.

[terryjreedy]

After looking at the old and proposed new together, I changed my opinion.