Run flake8 in warning only mode on Python 2 and 3

This will help us find and fix the Python 3 syntax errors (print_function, etc.)
100 · Jun 28, 2017 · 1693a8d · 1693a8d
1 parent 196f553
commit 1693a8d
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,13 @@
+sudo: false
+dist: trusty
 language: python
+python:
+  - "2.7.13"
+  - "3.6.1"
+  - "nightly"  # currently points to 3.7-dev
+before_install:
+  - pip install flake8
+  - flake8 . --exit-zero --select=E901,E999
 install:
   - pip install numpy
-  - pip install .
-script: py.test -s
+script: py.test -s