How to efficiently get rid of warnings emitted by the tests

[vhirtham]

The warning output of pytest is mostly not really helpful to find the source of a warning quickly. A simple trick to get a full trace is to turn the specific warning type you want to eliminate into an error. With pytest, just use:

pytest -W error::$NAME_OF_THE_WARNING

For example, to find the sources of all the "unit stripped" warnings emitted by pint, I used:

pytest -W error::pint.UnitStrippedWarning

You should also add these options to your pytest template in PyCharm so that you can run a failing test individually until the warning is gone.