`python --version` sends to stderr on macos before activating venv

[ciferkey]

Describe the bug

This seems similar to #271.

On macos the system version of Python is 2.7 and --version will send text to stderr.

Steps to reproduce

1. cd into a Python project that uses a virtual environment.
2. before sourcing the venv the system version of Python is used to detect the Python version.
3. The string Python 2.7.18 is printed over stderr.
4. once you source the venv, you the venv version of Python is used.
5. No messages appear in stderr.

Screenshots

Environment

Output of tide bug-report:

fish version: 4.4.0
tide version: 6.0.1
term: xterm-ghostty
os: MacOS Sequoia
terminal emulator: Ghostty/iTerm2
fish startup: 61.11 millis
fisher plugins: ilancosman/tide@v6 patrickf1/fzf.fish

Additional context