poetry returns 'dyld: Library not loaded ... image not found' following brew install while inside virtual environment

Question

I ran brew install postgresql while inside a poetry environment. Since then, I can't interact with poetry.

λ ~/ poetry
dyld: Library not loaded: /usr/local/Cellar/[email protected]/3.9.9/Frameworks/Python.framework/Versions/3.9/Python
  Referenced from: /Users/<my username>/Library/Application Support/pypoetry/venv/bin/python
  Reason: image not found
[1]    5634 abort      poetry

I get the same output when I try poetry <any other command>. I tried removing my virtual environments from λ ~/Library/Caches/pypoetry/virtualenvs/ expecting to be able to reinstall them from the .toml files in my projects, but can't run poetry install because I receive the same error.

I am running MacOS 10.15.7, Homebrew 3.3.12, poetry 1.1.12, & pyenv 2.2.4.

ECHO $PATH
/Users/<my username>/.poetry/bin:~/.local/bin:/Users/<my username>/Library/Python/3.9/bin:/shims:/Users/<my username>/.datacoral/cli/bin:/Users/<my username>/.nvm/versions/node/v12.13.0/bin:/Users/<my username>/bin:/usr/local/bin:/Users/<my username>/.pyenv/shims:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Users/<my username>/.local/bin:/Users/<my username>/.local/bin

Metaphysic

Answer 1

I faced this issue because when I executed brew install, brew updated the patch version of Python from 3.9.13_1 to 3.9.14.

This can be easily resolved by running the following to uninstall and then install poetry.

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

Berri

does not work in my case – Bowser

@Bowser Please add some context as to why it didn't work for you. – Berri

This also did not work for me. The error: Library not loaded: @loader_path/../Python and then zsh: no such file or directory: /use/lib/Python – Gourmandise

Answer 2

This is because brew might have installed using a different python version.

To fix this, we need to uninstall poetry, if you are using pyenv, change to required python version and then re-install poetry. Now poetry should be installed with the required python version.

# Uninstall poetry
curl -sSL https://install.python-poetry.org | python3 - --uninstall

# change to required python
pyenv local 3.10.8

# activate python
eval "$(pyenv init --path)"

# check python version
python --version

# Install latest poetry
curl -sSL https://install.python-poetry.org | python3 -

Actin

This solved my problem, now the poetry referring the python version set by pyenv instead of system default. thanks – Glossematics

@sairam What a genius !! saved my day buddy, This has to be an accepted answer – Kriskrischer

This answer works for me. I also uninstalled the brew version. – Carranza

Answer 3

I'm resolving this in case someone runs into the same issue.

Uninstalling and reinstalling poetry fixed the problem. I wasn't able to do this with the --uninstall option and instead had to do it manually. I first ran rm -rf pypoetry inside ~/Library/Application Support/. Then I re-ran the install line from poetry's site: curl -sSL https://install.python-poetry.org | python3 -.

The cause of the issue was using poetry shell instead of just poetry run jupyterlab –– this opened me up to absent-mindedly screwing up the poetry install by running brew installs while in the shell. Lesson learned!

Metaphysic

You magnificent beauty. – Tyeshatyg

@Metaphysic Are you sure its caused by running brew install in poetry shell? My feeling is there are chances normal brew installs updates python in brew, say like a patch version and poetry would be pointing to old version's location. – Berri

Just to add to this, for me it was enough to just update poetry with poetry self update – Authenticate

totally solved it. I think i ran brew update/upgrade (whichever does the installed apps updates) inside a poetry shell. Lesson learned!! Thank you!! – Faro

Answer 4

I tried all the above solutions, even searched for possible poetry entries in different places of the system, all deleted and uninstalled. Nothing worked, and as I have Python (3.8, 3.9, 3.10 and 3.11) installed on macOS with homebrew, the only solution was to install poetry via homebrew too.

brew install poetry

Unrestrained

I have Python 3.11 installed with home brew and this was the only solution that worked for me – Sorrell

I tried all the other answers, but this one worked immediately. Thank you! This needs to be in the poetry docs. I would have done this first. – Lona

Worked like charm. – Fluidize

Answer 5

At the time of writing, there is an open issue in the poetry repo for installations failing on macos: https://github.com/python-poetry/install.python-poetry.org/issues/24

There is a workaround posted in this comment:

curl -sSL https://install.python-poetry.org | sed 's/symlinks=False/symlinks=True/' | python3 -

Detraction

Answer 6

Following the recent update to brew 4.3.0, a brew autoremove was triggered for the first time on my machine to remove dangling dependencies.

This has led to a similar error when trying to operate poetry:

dyld: Library not loaded: '/opt/homebrew/opt/gettext/lib/libintl.8.dylib'
Referenced from: '/Users/me/.pyenv/versions/3.11.4/bin/python3.11'

Indeed gettext was one of the dangling dependencies that were auto-removed.

So there are two possible solutions here:

1. Workaround: reinstating gettext even though it's no longer a required dependency:

brew install gettext

2. Fix: reinstalling pyenv's affected python, from which poetry's virtual environment derives:

pyenv uninstall 3.11.4
pyenv install 3.11.4

Gintz