Merge pull request #56 from isaachier/travis-fix

Fix Travis for Python 3.3

Author: isaachier

.travis.yml

@@ -6,8 +6,7 @@ matrix:
   include:
   - python: '2.7'
     env: COVER=1
-  # For some reason not working.
-  # - python: '3.3'
+  - python: '3.3'
   - python: '3.4'
   - python: '3.5'
   - python: '3.6'

Makefile

@@ -30,7 +30,9 @@ check-virtualenv:
 bootstrap: check-virtualenv install-deps
 
 install-deps:
-	pip install 'setuptools>=20.8.1'
+	# We need to limit to <40.0.0 as long as we support Python 3.3.
+	# See https://github.com/pypa/setuptools/commit/7392f01ffced3acfdef25b0b2d55cefdc6ee468a.
+	pip install 'setuptools>=20.8.1,<40.0.0'
 	pip install -r requirements.txt
 	pip install -r requirements-test.txt
 	python setup.py develop