Advice

I had a python program that I could not get to work until I put it in a virtual environment.  Since I use it a lot, I put the following in a zsh script:

python3 -m venv ~/bin/pypath/venv
source ~/bin/pypath/venv/bin/activate
pinyin.py $FILE > ${FILE}.pinyin
deactivate

(FILE being $1 in the outer script.)

Until this week, it would always complain that the venv already exists, which I ignored as it was expected.  But this week, it instead says

Error: Command '['/Users/WGroleau/bin/pypath/venv/bin/python3.14', '-m', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.

Now, the whole script (including the python part) still does what it is supposed to do, but this change is puzzling.  Should I do anything about it?

pyvenv returns non-zero exit status 1 (during the installation of pip stage) looks similar, but there are at least two differences (pyvenv & python vs. venv & Python3.14).  Also, the solution there seems a bit complicated.

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4 Replies 4

J_H
•

It looks like you're working too hard.

You may find uv run convenient. It was designed for exactly this, and it is very fast.

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David Maze
•

You don't need to activate a virtual environment just to run a script out of it. You can just directly run

~/bin/pypath/venv/bin/pinyin.py "$FILE" > "$FILE.pinyin"

without activate or deactivate calls.

You also don't need to recreate the virtual environment every time you want to use it, so deleting the python3 -m venv ... line will avoid both forms of the error you're describing.

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WGroleau
•

My python script is not inside the venv.  If I move it there and change the path in the zsh script, I can get rid of all the other stuff?

The reason the create is there is because Python refused to work without a venv, and once I finally got it working, I didn't bother to remove that line.  I don't mind the messages when the output is correct.

But would did that diagnostic message begin appearing and the other stop when neither script had been changed?

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LORDZERG
•

try the "uv run"

Install it with pip:

# With pip.
pip install uv

or curl:

curl -LsSf https://astral.sh/uv/install.sh | sh

read more here:
https://pypi.org/project/uv/

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