Notes to Self

Alex Sokolsky's Notes on Computers and Programming

Python venv in ~/.local

Problem statement

lex@exi ~ % pip3 install glances
error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
    python3-xyz, where xyz is the package you are trying to
    install.

    If you wish to install a non-Debian-packaged Python package,
    create a virtual environment using python3 -m venv path/to/venv.
    Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
    sure you have python3-full installed.

    If you wish to install a non-Debian packaged Python application,
    it may be easiest to use pipx install xyz, which will manage a
    virtual environment for you. Make sure you have pipx installed.

    See /usr/share/doc/python3.11/README.venv for more information.

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.

Resolution

Install python support for virtual environment:

sudo apt install python3.11-venv

Create .local:

python3 -m venv ~/.local --system-site-packages

Install glances into .local venv:

~/.local/bin/pip install glances

After the path is extended in .zshenv as:

export PATH=$HOME/.local/bin:$PATH

Then:

alex@exi ~ % which glances
/home/alex/.local/bin/glances