# PEP 773: A Python Installation Manager for Windows

**URL:** https://discuss.python.org/t/pep-773-a-python-installation-manager-for-windows/77900
**Category:** PEPs
**Created:** [January 21, 2025, 11:58pm UTC](https://discuss.python.org/t/pep-773-a-python-installation-manager-for-windows/77900 "2025-01-21T23:58:55Z")
**Posts on this page:** 1
**Showing post:** 34

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### Author: ![steve.dower](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/steve.dower/32/56_2.png) [@steve.dower](https://discuss.python.org/u/steve.dower)
#### Post date: [January 23, 2025, 9:39pm UTC](https://discuss.python.org/t/pep-773-a-python-installation-manager-for-windows/77900/34 "2025-01-23T21:39:40Z")

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Okay, new demo build is ready (enough) for people to try it out.

[https://cpythonpackages.blob.core.windows.net/pkg/python-manager-0.1a4.msix](https://cpythonpackages.blob.core.windows.net/pkg/python-manager-0.1a4.msix) (~20MB)

Make sure you’re set up properly:

- If `py`, `python` or `pymanager` commands don’t work, check “Manage App Execution Aliases”
- If `py` doesn’t work, you might need to uninstall your existing “Python Launcher” from “Installed Apps”
- If `python` just launches an existing install, you might need to remove existing installs from PATH (or just ignore this command for testing)
- File associations may not update until you first run one, or you can right-click and “Open With” to change your default app

Things to try:

- `py list --online ">=3.10"`
- `py install 3.13t`
- `py list --format=jsonl`
- `python file-with-shebang.py` (e.g. `#! /usr/bin/python3.8`)
- internet disabled
- add `-v` or `-vv` to subcommands (or set `PYMANAGER_DEBUG` for too much info all the time)
- look in `%TEMP%` for logs
- whatever you are most concerned about!

Or check out the quick video demo:

[![](https://us1.discourse-cdn.com/flex002/uploads/python1/original/3X/4/d/4df03e67a46b93ab93973865a8669b730d2b67cb.jpeg "PyManager (PEP 773) demo 2") ](https://www.youtube.com/watch?v=Kl4XeDp51d8)

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