Not using the right python environment in projects

[pranasziaukas]

• I am on the latest Poetry version.
• I have searched the issues of this repo and believe that this is not a duplicate.
• If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: macOS v12.1
• Poetry version: v1.1.12
• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/pranasziaukas/1aa612116b00d49ff0cf7ac0511cd040

Issue

After a fresh install on macOS

➜ curl -sSL https://install.python-poetry.org | python3 -

poetry was added to ~/Library/Python/3.9/bin, which I thought was odd, but no complaints as long as it works:

➜ poetry --version
Poetry version 1.1.12

Created a default project pyproject.toml via poetry init, just changed the python version constraint to

python = "^3.10,<3.11"

I leverage pyenv to switch between different versions of python, so I did just that:

➜ pyenv local 3.10.0
➜ python --version
Python 3.10.0

At this point, I'd expect poetry to rely on the locally activated python version. But it doesn't:

➜ poetry install -vvv
The currently activated Python version 3.9.9 is not supported by the project (^3.10,<3.11).
Trying to find and use a compatible version.
Trying python3
Using python3 (3.10.0)
Creating virtualenv test-5f6I1Ta7-py3.10 in /Users/pranas/Library/Caches/pypoetry/virtualenvs
Using virtualenv: /Users/pranas/Library/Caches/pypoetry/virtualenvs/test-5f6I1Ta7-py3.10
Updating dependencies
Resolving dependencies...
   1: fact: test is 0.1.0
   1: derived: test
   1: selecting test (0.1.0)
   1: Version solving took 0.002 seconds.
   1: Tried 1 solutions.

Writing lock file

Finding the necessary packages for the current system

It claims that python v3.9.9 is activated, which is not true.
And the environment is wrong anyway:

➜ poetry env info

Virtualenv
Python:         3.9.9
Implementation: CPython
Path:           NA

System
Platform: darwin
OS:       posix
Python:   /usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9

So, effectively, the appropriate python 3.10.0 is not accessible at all:

➜ poetry run python --version
The currently activated Python version 3.9.9 is not supported by the project (^3.10,<3.11).
Trying to find and use a compatible version.
Using python3 (3.10.0)
The virtual environment found in /usr/local/opt/python@3.9/Frameworks/Python.framework/Versions/3.9 seems to be broken.
Recreating virtualenv test-5f6I1Ta7-py3.10 in /Users/pranas/Library/Caches/pypoetry/virtualenvs/test-5f6I1Ta7-py3.10
Python 3.9.9

[finswimmer]

TL;DR: The "pyenv" no longer works with the install-poetry.py script. See:

• After the installation of poetry via the new script install-poetry.py poetry ignores pyenv local python version #4199
• Poetry does not use active pyenv when creating virtual environment #651 (comment)
• poetry seems to ignore virtualenvs.create #4187 (comment)

We are discussing possible solutions:

• add flag --use-env to poetry commands #4179
• Add (experimental) option to use current active python to create venv ("pyenv way") #4852

[github-actions]

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