Installation error on Manjaro Linux (shell script?)

[WolframStrauss]

Hi,
I am about to install opp_env on manjaro-kde-23.1.3-240113-linux66.iso. The issue in the Important note: error: externally-managed-environment, I tried to solve with the Python venv solution. The installation works fine. In the active venv environment, starting opp_env leads to the following error:

Traceback (most recent call last):
  File "/home/str/projects/omnetpp-inet/bin/opp_env", line 5, in <module>
    from opp_env.opp_env import main
  File "/home/str/projects/omnetpp-inet/lib/python3.11/site-packages/opp_env/opp_env.py", line 14, in <module>
    from packaging.version import Version
ModuleNotFoundError: No module named 'packaging'

There is a ~/.local/bin entry in the PATH environment variable, but no such path. Section Installing opp_env on Linux and macOS in the README is referring to

When you install opp_env using pip, it installs the opp_env Python module, as well as a small script into your system's path (e.g. ~/.local/bin) that allows you to invoke it from the shell.

Which script is it?

Thank you, kind regards. Wolfram

[rhornig]

If you install opp_env into a virtual environment the the script itself will be installed to the virtual env directory's bin directory. .local/bin is used only of you use the system python install. (the name of the script is also opp_env

[rhornig]

as for the error, you may need to install the packaging module. i.e. pip install packaging. I was sort of assuming that the packagig module is installed, but indeed, on a clear machine, this must be also installed. Thanks for the report.

[WolframStrauss]

Hi,
the pip install packaging works;o) Thank you.

Note: If using a venv environment, run the installation command without the --user option to prevent error ERROR: Can not perform a '--user' install. User site-packages are not visible in this virtualenv.

[rhornig]

Thanks. I have added the missingpackage to the requirements so you no longer have to install it manually. Also modified the README file and removed the --user option as cirtual environments are the preferred was to use python.