Fixing up some local requirements for releasing

Author: carver

setup.py

@@ -83,10 +83,12 @@
         "bumpversion>=0.5.3,<1",
         "wheel",
         "setuptools>=36.2.0",
-        #Fixing this dependency due to: pytest 3.6.4 has requirement pluggy<0.8,>=0.5, but you'll have pluggy 0.8.0 which is incompatible.
+        # Fixing this dependency due to: pytest 3.6.4 has requirement pluggy<0.8,>=0.5, but you'll have pluggy 0.8.0 which is incompatible.
         "pluggy==0.7.1",
-        #Fixing this dependency due to: requests 2.20.1 has requirement idna<2.8,>=2.5, but you'll have idna 2.8 which is incompatible.
+        # Fixing this dependency due to: requests 2.20.1 has requirement idna<2.8,>=2.5, but you'll have idna 2.8 which is incompatible.
         "idna==2.7",
+        # idna 2.7 is not supported by requests 2.18
+        "requests>=2.20,<3",
         "tox==2.7.0",
         "twine",
     ],