_SAFE_READ.
_SAFE_READ.

Sometimes tox is run in the project directory, and others (on my
Raspberry Pi) it runs in a temporary directory, without copying over
README.rst.

setup.py didn't work without README.rst for long_description, but it's
not needed outside of running `sdist`. Making README.rst optional with
_SAFE_READ().

Robpol86/PythonTemplate