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.