New test 3.

.travis.yml

@@ -15,15 +15,7 @@ python:
   - "3.3"
 
 # command to install dependencies
-before_install:
-# Install miniconda to avoid compiling scipy
-  - mkdir -p download
-  - cd download
-  - wget -c https://repo.continuum.io/miniconda/Miniconda2-4.1.11-Linux-x86_64.sh -O $HOME/download/miniconda.sh
-  - chmod +x $HOME/download/miniconda.sh
-  - $HOME/download/miniconda.sh -b
-  - cd ..
-  - export PATH=/home/travis/miniconda2/bin:$PATH
+before_install: ./.travis/travis_before_install.sh
 
 addons:
   apt_packages:
@@ -32,17 +24,7 @@ addons:
    - texlive-fonts-recommended
    - dvipng
 
-install:
-# In Python 3.3, we test the min version of NumPy and SciPy. In Python 2.7, we test more recent version.
-# nose-exclude plugin should allow use to tell nosetests to exclude folder with --exclude-dir=path/to/directory.
-  - if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then conda create --yes -q -n pyenv mkl python=2.7 numpy=1.9.1 scipy=0.14.0 nose=1.3.0 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx mkl-service libgfortran=1; fi
-  - if [[ $TRAVIS_PYTHON_VERSION == '3.3' ]]; then conda create --yes -q -n pyenv mkl python=3.3 numpy=1.9.1 scipy=0.14.0 nose=1.3.4 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx mkl-service; fi
-  - source activate pyenv
-  - if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then pip install pydot; else pip install pydot-ng; fi
-  - pip install . --no-deps
-  - pip install flake8-future-import nose-parameterized==0.5.0 sphinx_rtd_theme
-  - pip install nose-exclude
-  - conda info --envs | grep "*" | cut -d"*" -f 2 | sed 's/^ *//g' | sed 's/ *$//g'
+install: ./.travis/travis_install.sh
 
 # command to run tests
 env:

.travis/travis_before_install.sh

+# Install miniconda to avoid compiling scipy
+if ! test -e $HOME/miniconda2/bin ; then
+    wget -c https://repo.continuum.io/miniconda/Miniconda2-4.1.11-Linux-x86_64.sh -O $HOME/download/miniconda.sh
+    chmod +x $HOME/download/miniconda.sh
+    $HOME/download/miniconda.sh -b
+    export PATH=/home/travis/miniconda2/bin:$PATH
+else
+    echo "miniconda already installed."
+fi
\ No newline at end of file

.travis/travis_install.sh

+# In Python 3.3, we test the min version of NumPy and SciPy. In Python 2.7, we test more recent version.
+# nose-exclude plugin should allow use to tell nosetests to exclude folder with --exclude-dir=path/to/directory.
+if ! test -e $HOME/miniconda2/envs/pyenv
+then
+    if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then conda create --yes -q -n pyenv mkl python=2.7 numpy=1.9.1 scipy=0.14.0 nose=1.3.0 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx mkl-service libgfortran=1; fi
+    if [[ $TRAVIS_PYTHON_VERSION == '3.3' ]]; then conda create --yes -q -n pyenv mkl python=3.3 numpy=1.9.1 scipy=0.14.0 nose=1.3.4 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx mkl-service; fi
+    source activate pyenv
+else
+    source activate pyenv
+    if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then conda install mkl python=2.7 numpy=1.9.1 scipy=0.14.0 nose=1.3.0 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx mkl-service libgfortran=1; fi
+    if [[ $TRAVIS_PYTHON_VERSION == '3.3' ]]; then conda install mkl python=3.3 numpy=1.9.1 scipy=0.14.0 nose=1.3.4 pip flake8=2.3 six=1.9.0 pep8=1.6.2 pyflakes=0.8.1 sphinx mkl-service; fi
+fi
+
+if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then pip install pydot; else pip install pydot-ng; fi
+pip install . --no-deps
+pip install flake8-future-import nose-parameterized==0.5.0 sphinx_rtd_theme
+pip install nose-exclude
\ No newline at end of file