Update travis-ci python versions to match master.

2.7.8 is no longer available and "pypy3" is old and has
other issues.

diff --git a/.travis.yml b/.travis.yml
index 4b2ac2bcc48ff738bfaf6010cf19fee2c30aa44f..e3b33c043eb7685248d4bf5d56cd2685d0254717 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 # https://travis-ci.org/tornadoweb/tornado
 language: python
 python:
-    - 2.7.8
     - 2.7
     - pypy
     - 3.3
@@ -9,7 +8,7 @@ python:
     - 3.5
     - 3.6
     - nightly
-    - pypy3
+    - pypy3.5-5.8.0
 
 install:
     - if [[ $TRAVIS_PYTHON_VERSION == 2* ]]; then travis_retry pip install futures mock monotonic trollius; fi