Bad experience: Mac, python from brew, pip install uv

[anki-code]

Hey! Thank you for this awesome thing!

I tried to install it but had bad experience on Mac. Let's take a look:

which pip
# /opt/homebrew/bin/pip

pip -V
# pip 22.3.1 from /usr/local/lib/rustpython3.11/site-packages/pip

pip install uv
# ERROR: Could not install packages due to an 
# OSError: [Errno 13] Permission denied (os error 13): '/usr/local/bin/uv' -> 'None' 🔴 
# Consider using the `--user` option or check the permissions.

pip install --user uv
# Successfully installed uv-0.2.17
# WARNING: There was an error checking the latest version of pip. 🔴 

uv
# The command line interface for the uv binary.

uv pip install pandas
# error: No Python interpreters found in system toolchains 🔴 

[charliermarsh]

Do you have Python installed?

[anki-code]

which python
# /opt/homebrew/bin/python

[charliermarsh]

You should run uv venv first to create a virtual environment. (That error message is fixed on main.)

[zanieb]

I believe I just fixed the error message you're seeing at #4596

We require creation of a virtual environment, so you need to run uv venv before you can uv pip install.

We don't support pip's user flag (#2077 )

[anki-code]

I can't see the future error message in 4596 but I believe it will be like "Activate virtual env before install packages."

I used --user because of OSError: [Errno 13] Permission denied (os error 13): '/usr/local/bin/uv' -> 'None'.

After activating the environment it works as expected:

execx($(micromamba shell hook --shell xonsh))
mamba activate @('myenv')

uv pip install pandas
# Resolved 6 packages in 1.43s
# Prepared 5 packages in 2.66s
# Installed 5 packages in 75ms

Thanks!

[zanieb]

Glad it's sorted out. We'll add more suggestions to the error messages there soon :)