Make sure we are using conda env

scripts/travis_script.sh

@@ -8,6 +8,7 @@ export DISPLAY=:99.0
 sh -e /etc/init.d/xvfb start || true
 
 # Install in-place and install the server extension
+export PATH="$HOME/miniconda/bin:$PATH"
 pip install -v -e .
 jupyter serverextension enable --py jupyterlab
 
@@ -15,7 +16,7 @@ npm run clean
 npm run build
 npm test
 npm run test:coverage
-export PATH="$HOME/miniconda/bin:$PATH"
+
 npm run build:examples
 npm run docs
 cp jupyter-plugins-demo.gif docs