Python Launcher for Windows (`py -0`) no longer shows star ("*") for default version

[Dutcho]

BPO	47239
Nosy	@pfmoore, @tjguk, @zware, @zooba, @Dutcho
PRs	bpo-47239: Fixes py.exe output when run in a virtual environment. #32364

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/zooba'
closed_at = <Date 2022-04-06.23:11:17.852>
created_at = <Date 2022-04-06.11:03:19.553>
labels = ['OS-windows', '3.11']
title = 'Python Launcher for Windows (`py -0`) no longer shows star ("*") for default version'
updated_at = <Date 2022-04-06.23:11:17.852>
user = 'https://github.com/Dutcho'

bugs.python.org fields:

activity = <Date 2022-04-06.23:11:17.852>
actor = 'steve.dower'
assignee = 'steve.dower'
closed = True
closed_date = <Date 2022-04-06.23:11:17.852>
closer = 'steve.dower'
components = ['Windows']
creation = <Date 2022-04-06.11:03:19.553>
creator = 'Dutcho'
dependencies = []
files = []
hgrepos = []
issue_num = 47239
keywords = ['patch']
message_count = 7.0
messages = ['416855', '416856', '416858', '416860', '416864', '416872', '416907']
nosy_count = 5.0
nosy_names = ['paul.moore', 'tim.golden', 'zach.ware', 'steve.dower', 'Dutcho']
pr_nums = ['32364']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue47239'
versions = ['Python 3.11']

[Dutcho]

If doing py -list in 3.11.0a7, a star "*" shows on 3.11, even though the default (set by environment variable PY_PYTHON) is 3.10, which py -V confirms

C:\>py --list
 -V:3.11 *        Python 3.11 (64-bit)
 -V:3.10          Python 3.10 (64-bit)
 -V:3.9           Python 3.9 (64-bit)
 -V:3.8           Python 3.8 (64-bit)

C:\>py -V
Python 3.10.4

[Dutcho]

That was the case in older versions (up to a6)

[zooba]

Good catch, thanks!

[Dutcho]

BTW I just found 'py -0p' also no longer shows the 'venv' path

(venv) C:\>py -0p
 -V:3.11 *        C:\Program Files\Python311\python.exe
 -V:3.10          C:\Program Files\Python310\python.exe
 -V:3.9           C:\Program Files\Python39\python.exe
 -V:3.8           C:\Program Files\Python38\python.exe
(venv) C:\>pip -V
pip 22.0.4 from C:\...\venv\Lib\site-packages\pip (python 3.11)

Or should I make a separate bug entry for this?

[zooba]

It's fine here. It affects the same part of the code.

[zooba]

PR posted, and here's some sample output with the change:

C:\> py.exe --list

•           Active venv
  

-V:3.11 Python 3.11 (Store)
-V:3.10 Python 3.10 (Store)
-V:3.10-32 Python 3.10 (32-bit)
-V:3.9 Python 3.9 (64-bit)
-V:3.9-32 Python 3.9 (32-bit)
-V:3.8 Python 3.8 (64-bit)
-V:3.7 Python 3.7 (64-bit)
-V:ContinuumAnalytics/Anaconda38-64 Anaconda 2021.05
-V:ContinuumAnalytics/Anaconda37-64 Anaconda py37_4.8.3

C:\> py.exe --list-paths

•           C:\\Temp\\env310\\Scripts\\python_d.exe
  

-V:3.11 C:\Users\steve\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.11_3847v3x7pw1km\python.exe
-V:3.10 C:\Users\steve\AppData\Local\Microsoft\WindowsApps\PythonSoftwareFoundation.Python.3.10_3847v3x7pw1km\python.exe
-V:3.10-32 C:\Users\steve\AppData\Local\Programs\Python\Python310-32\python.exe
-V:3.9 C:\Users\steve\AppData\Local\Programs\Python\Python39\python.exe
-V:3.9-32 C:\Users\steve\AppData\Local\Programs\Python\Python39-32\python.exe
-V:3.8 C:\Python38\python.exe
-V:3.7 C:\Python37\python.exe
-V:ContinuumAnalytics/Anaconda38-64 C:\Users\steve\Anaconda3\python.exe
-V:ContinuumAnalytics/Anaconda37-64 C:\Users\steve\Miniconda3\python.exe

[zooba]

New changeset 2390b22 by Steve Dower in branch 'main':
bpo-47239: Fixes py.exe output when run in a virtual environment. (GH-32364)
2390b22