Test with Python 3.7 installed via Conda

Author: tkf

.travis.yml

@@ -24,6 +24,10 @@ matrix:
       env: PYTHON=python3 # I'm not sure how to install Python 3 on Travis OSX
 before_install:
     - test "x$TRAVIS_OS_NAME" = xosx -o "x$PYTHON" = xConda || (sudo apt-get -qq update && sudo apt-get install -y $PYTHON)
+    - julia --color=yes -e 'VERSION < v"0.7.0-DEV.5183" || using Pkg; Pkg.add("Conda")'
+    - if [ "x$PYTHON" = xConda ]; then
+      julia --color=yes -e 'using Conda; Conda.add("python=3.7")';
+      fi
 
 after_success:
     - julia -e 'Pkg.add("Coverage"); using Coverage; Codecov.submit(process_folder())'