Comment by leecarraher

in case you are wondering how audiblez becomes an executable in the PATH from a pip install audiblez per the documentation

... audiblez book.epub -l en-gb -v af_sky.

it does not, instead it installs a python package with a cli interface, to run you then have to prepend python and load the module like this:

python3 -m audiblez book.epub -l en-gb -v af_sky.