Doesn't install on Ubuntu

[bakirillov]

Describe the bug
pip install -U pyxel
fails with an error:
`class RegexFlag(enum.IntFlag):
AttributeError: module 'enum' has no attribute 'IntFlag'

ERROR: Command errored out with exit status 1: /home/bakirillov/anaconda3/envs/lapki/bin/python /home/bakirillov/anaconda3/envs/lapki/lib/python3.7/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-jo98jnqi/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.8.0' wheel Check the logs for full command output
`
libsdl-dev is up-to-date (2.0.10+dfsg1-1ubuntu1).
libsdl-image-dev is also up-to-date (2.0.5+dfsg1-1).
Python - 3.7.5.

To Reproduce
Steps to reproduce the behavior:

1. Run pip install -U pyxel

Expected behavior
It should have installed pyxel.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Ubuntu 19.10

[accidentalrebel]

There are other packages that has the same error as below:
AttributeError: module 'enum' has no attribute 'IntFlag'

The solution that they found was uninstalling the enum34 package. Have you tried this?

[bakirillov]

There are other packages that has the same error as below:
AttributeError: module 'enum' has no attribute 'IntFlag'

The solution that they found was uninstalling the enum34 package. Have you tried this?

Tried that now, it works! Thank you very much. Will mark the issue as closed.