Any tips on how to debug below issue?

It looks like the tap you are installing

tap-db2

may require OS libraries or other dependencies.

I see the

pyodbc

does publishes wheels for a good number of systems: https://pypi.org/project/pyodbc/#files. Can I ask which OS are you on? This might help: https://github.com/mkleehammer/pyodbc/issues/441

The screenshot looks like an Ubuntu system (running on WSL).

pyodbc

does not publish wheels for any Linux distros to pypi. So, the wheel needs to be built from source. Instructions are published on the wiki for

pyodbc

https://github.com/mkleehammer/pyodbc/wiki/Install#ubuntu-1804 I think the

unixodbc-dev

package is probably missing from your Ubuntu system.

Yes, I'm running Ubuntu on WSL. Installing the unixodbc-dev package has solved the issue. Thank you all for your great support!