Try to allow 3.7 failures to not break the build.

rouilj · rouilj · commit 8c62b7014b87 · 2019-06-10T21:30:59.000-04:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,15 +1,19 @@
 language: python
 
 python:
-  - "2.7"
-  - "3.4"
-  - "3.5"
-  - "3.6"
-  - "3.7"
+  - 2.7
+  - 3.4
+  - 3.5
+  - 3.6
+  - 3.7
 
 dist:
  - xenial
 
+matrix:
+    allow_failures:  # 3.7 not ready for prime time yet.
+        python: 3.7
+
 sudo: false
 
 addons:
