Python build tutorial failing on Windows

[aqc-carlodri]

Checks

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pixi, using pixi --version.

Reproducible example

The code is exactly the one presented in the Python tutorial pages, both give the same result:

• https://pixi.sh/dev/build/python/
• https://pixi.sh/v0.41.1/build/python/

Only change is platforms = ["win-64"] otherwise I stumble into #2805.

Using Win10 x64 and pixi 0.41.1

xref discord

Issue description

Running pixi run start builds the whole thing and finally errors out with the following:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "D:\simple-pixi-package\.pixi\envs\default\Scripts\rich-example-main.EXE\__main__.py", line 4, in <module>
    from rich_example import main
  File "D:\simple-pixi-package\src\rich_example\__init__.py", line 2, in
 <module>
    from rich.console import Console
ModuleNotFoundError: No module named 'rich'

Expected behavior

Should not error out and print the expected table.

[aqc-carlodri]

Confirmed that the example works fine under Ubuntu 24 in WSL