`setuptools` required @ runtime

[cooperlees]

Can we add install_requires 'setuptools' as in some use cases I need to be explicit to have setuptools available.

• e.g. pkg_resources is import at runtime.

Happy to do the PR.

[cooperlees]

https://github.com/davidfischer/requirements-parser/pull/38

[ambv]

Cooper is right, requirement.py imports from pkg_resources so setuptools should be listed as a hard dep of requirements-parser.

[cooperlees]

Fix is merged! Thanks. Should we bump a version and send to PyPI (you prob want to address the other PRs I guess too).

[cooperlees]

The fix has been merged.