enum34 appears to be a potential source of problems when installed in
environments using Python 3.4 or later [0, 1]. Apparently enum34
1.1.8 was able to avoid these issues, but a regression was introduced in
1.1.9 and is still present in the most recent release [2].
This commit loosens the requirement on enum34 so that it is only
installed if Python 3.3 or older is used.
This particular solution requires setuptools v36.2 or newer [3]. If
older versions of setuptools need to be supported, then the requirements
can be put into an extras_require clause [4, 5].
enum34 appears to be a potential source of problems when installed in environments using Python 3.4 or later [0, 1]. Apparently enum34 1.1.8 was able to avoid these issues, but a regression was introduced in 1.1.9 and is still present in the most recent release [2].
This commit loosens the requirement on enum34 so that it is only installed if Python 3.3 or older is used.
This particular solution requires setuptools v36.2 or newer [3]. If older versions of setuptools need to be supported, then the requirements can be put into an extras_require clause [4, 5].
[0]: https://github.com/python-poetry/poetry/issues/1122 [1]: https://github.com/iterative/dvc/issues/1995 [2]: https://web.archive.org/web/20200621215937/https://bitbucket.org/stoneleaf/enum34/issues/31/make-the-install-a-noop-on-python36 [3]: https://setuptools.readthedocs.io/en/latest/history.html#v36-2-0 [4]: https://github.com/robshakir/pyangbind/issues/232#issuecomment-437987496 [5]: https://gitlab.com/pycqa/flake8/-/merge_requests/191/diffs