Trying to keep both numpy versions cached

.travis.yml

@@ -4,16 +4,16 @@ matrix:
   fast_finish: true
   include:
   - python: 2.7
-    env: PANDAS_VERSION=0.16.1 NUMPY_VERSION=1.9.2 SCIPY_VERSION=0.15.1 CACHE_DIR=$HOME/.cache/pip_np19
+    env: PANDAS_VERSION=0.16.1 NUMPY_VERSION=1.9.2 SCIPY_VERSION=0.15.1 CACHE_DIR=$HOME/.cache/.pip/pip_np19
   - python: 2.7
-    env: PANDAS_VERSION=0.17.1 NUMPY_VERSION=1.10.2 SCIPY_VERSION=0.16.1 CACHE_DIR=$HOME/.cache/pip_np110
+    env: PANDAS_VERSION=0.17.1 NUMPY_VERSION=1.10.2 SCIPY_VERSION=0.16.1 CACHE_DIR=$HOME/.cache/.pip/pip_np110
   - python: 3.4
-    env: PANDAS_VERSION=0.16.1 NUMPY_VERSION=1.9.2 SCIPY_VERSION=0.15.1 CACHE_DIR=$HOME/.cache/pip_np19
+    env: PANDAS_VERSION=0.16.1 NUMPY_VERSION=1.9.2 SCIPY_VERSION=0.15.1 CACHE_DIR=$HOME/.cache/.pip/pip_np19
   - python: 3.4
-    env: PANDAS_VERSION=0.17.1 NUMPY_VERSION=1.10.2 SCIPY_VERSION=0.16.1 CACHE_DIR=$HOME/.cache/pip_np110
+    env: PANDAS_VERSION=0.17.1 NUMPY_VERSION=1.10.2 SCIPY_VERSION=0.16.1 CACHE_DIR=$HOME/.cache/.pip/pip_np110
 cache:
   directories:
-    - $CACHE_DIR
+    - $HOME/.cache/.pip/
 
 before_install:
   - if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then wget https://repo.continuum.io/miniconda/Miniconda-3.7.0-Linux-x86_64.sh -O miniconda.sh; else wget https://repo.continuum.io/miniconda/Miniconda3-3.7.0-Linux-x86_64.sh -O miniconda.sh; fi