build: add comment to .travis.yml on how to test Py3

PR-URL: #29473 Reviewed-By: Sam Roberts <[email protected]> Reviewed-By: Luigi Pinca <[email protected]>
nodejs · Sep 25, 2019 · c1695c6 · c1695c6
1 parent fa77dc5
commit c1695c6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -6,9 +6,13 @@ x-ccache-setup-steps: &ccache-setup-steps
 
 os: linux
 language: cpp
+# Currently this file can only support one PYTHON_VERSION.
+# To experiment with Python 3, comment out Python 2.7 and uncomment one of the Python 3 versions.
 env:
   global:
     - PYTHON_VERSION="2.7.15"
+    # - PYTHON_VERSION="3.6.7"
+    # - PYTHON_VERSION="3.7.1"
 jobs:
   include:
     - stage: "Compile"