Hypothesis package def'n lacks the necessary version constraint on attrs package

[smontanaro]

The hypothesis package:

https://anaconda.org/anaconda/hypothesis

depends on attrs, but fails to specify a necessary version constraint.

The setup.py file is pretty clear on the version dependency:

install_requires = ['attrs>=16.0.0', 'coverage']

That version dependency was introduced 2018-01-23. According to the hypothesis/version.py file history, v 3.46.0 (what I have available at work) was released 2018-02-25, so it appears the attrs version dependency failed to make the jump from pip to conda. The git logs for both setup.py and src/hypothesis/version.py tell the complete tale:

https://github.com/HypothesisWorks/hypothesis-python/commits/master/setup.py
https://github.com/HypothesisWorks/hypothesis-python/commits/master/src/hypothesis/version.py