MAINT update travis

Author: glemaitre

.travis.yml

@@ -33,11 +33,9 @@ matrix:
     - env: DISTRIB="ubuntu"
     # Latest release
     - env: DISTRIB="conda" PYTHON_VERSION="3.6"
-           NUMPY_VERSION="*" SCIPY_VERSION="*" SKLEARN_VERSION="0.21"
+           NUMPY_VERSION="*" SCIPY_VERSION="*" SKLEARN_VERSION="0.21.2"
     - env: DISTRIB="conda" PYTHON_VERSION="3.7"
-           NUMPY_VERSION="1.14.6" SCIPY_VERSION="1.1.0" SKLEARN_VERSION="0.21"
-    - env: DISTRIB="conda" PYTHON_VERSION="3.7"
-           NUMPY_VERSION="*" SCIPY_VERSION="*" SKLEARN_VERSION="master"
+           NUMPY_VERSION="*" SCIPY_VERSION="*" SKLEARN_VERSION="0.21.2"
   allow_failures:
     - env: DISTRIB="conda" PYTHON_VERSION="3.7"
            NUMPY_VERSION="*" SCIPY_VERSION="*" SKLEARN_VERSION="master"

build_tools/travis/install.sh

@@ -10,10 +10,6 @@
 
 set -e
 
-echo 'List files from cached directories'
-echo 'pip:'
-ls $HOME/.cache/pip
-
 export CC=/usr/lib/ccache/gcc
 export CXX=/usr/lib/ccache/g++
 # Useful for debugging how ccache is used
@@ -40,13 +36,10 @@ if [[ "$DISTRIB" == "conda" ]]; then
     source activate testenv
     conda install --yes numpy=$NUMPY_VERSION scipy=$SCIPY_VERSION
 
-    if [[ $PYTHON_VERSION == "3.6" ]]; then
-        # Tensorflow is not available in Python 3.7 yet.
-        conda install --yes pandas keras tensorflow
-        KERAS_BACKEND=tensorflow
-        python -c "import keras.backend"
-        sed -i -e 's/"backend":[[:space:]]*"[^"]*/"backend":\ "'$KERAS_BACKEND'/g' ~/.keras/keras.json;
-    fi
+    conda install --yes pandas keras tensorflow
+    KERAS_BACKEND=tensorflow
+    python -c "import keras.backend"
+    sed -i -e 's/"backend":[[:space:]]*"[^"]*/"backend":\ "'$KERAS_BACKEND'/g' ~/.keras/keras.json;
 
     if [[ "$SKLEARN_VERSION" == "master" ]]; then
         conda install --yes cython