BLD: Install requests using conda (#725)

* BLD: Remove dependency cap on sphinx

* Remove scikit-learn install

* Install certifi from conda

* Add a comment and remove requests installation

* Install requests using conda

* Update .travis.yml

* Re-add sphinx cap

.travis.yml

@@ -35,11 +35,11 @@ before_install:
   - conda update --yes conda
 
 install:
-  - conda create --yes -n travis python=$TRAVIS_PYTHON_VERSION pip numpy${NUMPY_VERSION} 'scipy>=0.17.0' matplotlib pandas flake8 pep8 jupyter coverage cython
+  # install requests using conda to avoid a distutils error in certifi
+  - conda create --yes -n travis python=$TRAVIS_PYTHON_VERSION pip numpy${NUMPY_VERSION} 'scipy>=0.17.0' matplotlib pandas flake8 pep8 jupyter coverage cython scikit-learn requests
   - source activate travis
   - conda install -c conda-forge phantomjs --yes
-  # scikit-learn has to be pinned down due to a bug: https://github.com/scikit-learn/scikit-learn/issues/12671
-  - pip install https://github.com/google/closure-linter/archive/master.zip 'sphinx<1.6' sphinx-bootstrap-theme coveralls 'scikit-learn==0.19.2' --no-binary scikit-learn
+  - pip install https://github.com/google/closure-linter/archive/master.zip 'sphinx<1.6' sphinx-bootstrap-theme coveralls
   - pip install -e '.[all]' --verbose
   - npm install -g jsdoc
 

setup.py

@@ -41,7 +41,7 @@
 skbio_3 = "scikit-bio >= 0.4.1"
 base = ["numpy >= 1.7", "scipy >= 0.17.0", "click", "pandas",
         skbio_2, "jinja2 >= 2.9", "future"]
-doc = ["Sphinx < 1.6", "sphinx-bootstrap-theme"]
+doc = ["Sphinx", "sphinx-bootstrap-theme"]
 test = ["pep8", "flake8"]
 all_deps = base + doc + test