Travis CI: Use os x 10.10 image #55

.travis.yml

@@ -1,21 +1,24 @@
 # Run os x builds on travis-ci.org
 
+# Use OS X 10.10
 os: osx
 language: generic
-osx_image: xcode9
+osx_image: xcode6.4
 
 env:
  - HOMEBREW_NO_AUTO_UPDATE=1
 
+git:
+ submodules: false
+
 before_install:
- # Install python
- - eval "$(pyenv init -)"
- - pyenv install --list
- - env PYTHON_CONFIGURE_OPTS="--enable-framework" pyenv install 3.6.2
- - pyenv local 3.6.2
-
- # Install libusb
- - brew install libusb || brew upgrade libusb
+ # Install Python 3.6.2
+ - brew install https://raw.github.com/Homebrew/homebrew-core/b1f976bb3c76bbb2a8d76cf46fea8b2c2235f631/Formula/python3.rb
+ - python3 -m venv venv
+ - source venv/bin/activate
+
+ # Install libusb 1.0.21
+ - brew install https://raw.github.com/Homebrew/homebrew-core/cb21e9ac30e47e3ea161c4247a6397967f83c83f/Formula/libusb.rb
 
 install:
  # Install dependencies