diff --git a/.travis.yml b/.travis.yml
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+language: python
+python:
+  - "2.7"
+  - "3.5"
+  - "3.6"
+# command to install dependencies
+install:
+  - pip install twisted
+  - pip install boto3
+  - pip install https://github.com/matrix-org/synapse/tarball/master
+# command to run tests
+script:
+  - PYTHONPATH=. trial test_s3