Specifying python versions supported in setup.py (#382)

* Specifying python versions supported in setup.py

* Fixing py3

.travis.yml

@@ -2,6 +2,7 @@ language: python
 python:
   - "2.7"
   - "3.4"
+  - "3.5"
 cache:
   directories:
     - $HOME/.wheelhouse/
@@ -10,7 +11,7 @@ before_install:
 install:
   - pip wheel -w $HOME/.wheelhouse -f $HOME/.wheelhouse .
   - pip install --find-links=$HOME/.wheelhouse --no-index .
-  - pip install --find-links=$HOME/.wheelhouse --no-index -r dev-reqs.txt
+  - pip install -r dev-reqs.txt
   - cd caravel/assets
   - npm --version
   - npm install

setup.py

@@ -43,4 +43,9 @@ setup(
     url='https://github.com/airbnb/caravel',
     download_url=(
         'https://github.com/airbnb/caravel/tarball/' + version.VERSION_STRING),
+    classifiers=[
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+    ],
 )