Travis - problematic Python and Node

We’re speaking about project with NodeJS that also requires aws-cli (for refreshing CloudFront). Builds were failing randomly because only the newest Python was available for Ubuntu Trusty, 2.7.6, which had some SSL-related stuff missing. Adding:

python:
    - 3.6

to .travis.yml, or any other version, resulted in… nothing.

Solution

It was sufficient to set language: python in .travis.yml in our front-end app. Then Travis correctly downloaded new Python.

Old Node version

If we have e.g. language: php project, Node will be available in antediluvian 0.10 version, perhaps. You should add:

before_install:
   - nvm install 7

to be happy about Node 7. Another option is adding .nvmrc file, in which you enter the version string.