Upgrade from Ubuntu 22.04 to 24.04 broke pyznap

[jpbrown-15]

The error is:

Traceback (most recent call last):
  File "/usr/local/bin/pyznap", line 5, in <module>
    from pyznap.main import main
ModuleNotFoundError: No module named 'pyznap'

During the upgrade of Ubuntu, python is upgraded to python3.12.

Using
pip3 install pyznap

results in:

pip3 install pyznap
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/python3.12/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.

Trying pip3 install --upgrade pyznap resulted in the same message.

My quick workaround was to copy the pyznap directory from /usr/local/lib/python3.10/dist-packages to the /usr/local/lib/python3.12/dist-packages

This allowed pyznap to resume functionality. I'm sure there is a better way to reinstall pyznap but pip no longer seems to recognize it.

[Sithuk]

Pyznap will not install on a fresh 24.04 install either.

[Edit: Ignore comment. Pyznap works fine in Ubuntu 24.04.
I experienced an error owing to a change in Python 3.12 where setuptools is not installed in a virtual environment created by venv. Fixed by running "pip install setuptools" in the venv virtual environment.
https://github.com/python/cpython/issues/95299

@yboetz : The setup.py install command of setuptools is deprecated. Does that have consequences for pyznap in the future if it is no longer available? There haven't been any updates in around four years now. If you no longer intend to maintain pyznap, a snap or flatpak package might helpful to avoid issues with outdated dependencies. Notwithstanding another author forking the project of course.
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