Consider adding python_requires=">=3.6" to setup.py

[dolfinus]

#163 dropped support of Python < 3.6, but haven't set minimal Python version in setup.py. Currently only classifiers are set, which are just additional information used for search, these values are not checked during package installation.

Please add this to setup.py:

python_requires=">=3.6",

[dolfinus]

BTW, Python 3.6 reached end-of-life on 2021-12-23. Why keep supporting this version?

Python 3.7 reached end-of-life too, on 2023-06-27.

[eemeli]

Please add this to setup.py:

python_requires=">=3.6",

A PR to this effect would be welcome.

BTW, Python 3.6 reached end-of-life on 2021-12-23. Why keep supporting this version?

Because we've not found reason enough yet to drop the support.

[dolfinus]

A PR to this effect would be welcome.

#195