Ubuntu:
$ sudo apt-get install -y python-minimal virtualenv
$ virtualenv /tmp/test
$ . /tmp/test/bin/activate
$ pip install -U pip setuptools wheel
$ pip list
Package Version
------------- -------
pip 18.1
setuptools 40.5.0
wheel 0.32.2
$ git clone https://github.com/norioxkimura/python-package-experiment.git
$ cd python-package-experiment
$ pip install -e .
$ hello
I am acme.core.hello()
$ which hello
/tmp/test/bin/hello
$ pip install -e .[dev]
$ pytest
...
$ tox
...