Merge pull request #152 from python-hyper/requires-io-master

[requires.io] dependency update on master branch

Author: wsanchez

tox.ini

@@ -187,7 +187,7 @@ description = run Mypy (static type checker)
 basepython = {[default]basepython}
 
 deps =
-    mypy==0.790
+    mypy==0.800
 
     {[default]deps}