Fix ROOT builds on Travis CI

.travis.yml

@@ -2,14 +2,9 @@ language: python
 
 matrix:
   include:
-    - python: 2.7
-      env: PYTHON=2.7 ROOT=5.34.32
-    - python: 2.7
-      env: PYTHON=2.7 ROOT=6.04
-    - python: 3.4
-      env: PYTHON=3.4 ROOT=5.34.32
-    - python: 3.4
-      env: PYTHON=3.4 ROOT=6.04
+    - env: PYTHON=2.7
+    - env: PYTHON=3.6
+    - env: PYTHON=3.7
 
 install:
   - if [ "${TRAVIS_OS_NAME}" == "osx" ]; then curl --silent http://repo.continuum.io/miniconda/Miniconda-latest-MacOSX-x86_64.sh
@@ -20,14 +15,17 @@ install:
   - export PATH="$HOME/miniconda/bin:$PATH"
   - hash -r
   - conda config --set always_yes yes --set changeps1 no
-  - conda update -q conda
-  - conda info -a
-  - conda config --add channels http://conda.anaconda.org/NLeSC
-  - conda config --set show_channel_urls yes
-  - conda create -q -n testenv python=${PYTHON} root=${ROOT} pandas nose
+  - conda config --add channels conda-forge/label/gcc7
+  - conda config --add channels chrisburr
+  - conda create -q -n testenv python=${PYTHON} nomkl root pandas nose
   - export CONDA_ENV_PATH=$HOME/miniconda/envs/testenv
   - source activate testenv
-  - pip install --user --no-binary=root_numpy root_numpy==4.4.1 rootpy
+  - if [ "${PYTHON}" == "3.7" ]; then
+      pip install git+https://github.com/scikit-hep/root_numpy.git;
+    else
+      pip install root_numpy;
+    fi
+  - pip install root_numpy rootpy
   - pip install coverage coveralls
 
 script: nosetests --with-coverage --cover-package=root_pandas