The .dir-locals.el set the project's python enviroment for the emacs tasks like
flycheck or jedi. The py-environment has to be next to <repo>/.dir-locals.el::
./local/py3
To setup such an environment build target 'pyenv' or 'pyenvinstall'::
$ make pyenvinstall
TL;DR
Alternatively create the virtualenv, source it and install jedi + epc
(required by `emacs-jedi <https://tkf.github.io/emacs-jedi>`_)::
$ virtualenv --python=python3 "--no-site-packages" ./local/py3
...
$ source ./local/py3/bin/activate
(py3)$ # now install into the activated 'py3' environment ..
(py3)$ pip install jedi epc
...
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
