triggering this to test if we're getting bit by travis-ci/travis-ci#4704

 (#2055)

* BLD: Ensure stdout is in blocking mode for conda create.

.travis.yml

@@ -47,7 +47,9 @@ install:
       RECIPE_OUTPUT=$(conda build conda/$recipe --python=$CONDA_PY --numpy=$CONDA_NPY --old-build-string --output)
       if [[ -f "$RECIPE_OUTPUT" && "$DO_UPLOAD" = "true" ]]; then anaconda -t $ANACONDA_TOKEN upload "$RECIPE_OUTPUT" -u quantopian --label ci; fi
     done
-
+  # Make sure stdout is in blocking mode. If we don't, then conda create will barf during downloads.
+  # See https://github.com/travis-ci/travis-ci/issues/4704#issuecomment-348435959 for details.
+  - python -c 'import os,sys,fcntl; flags = fcntl.fcntl(sys.stdout, fcntl.F_GETFL); fcntl.fcntl(sys.stdout, fcntl.F_SETFL, flags&~os.O_NONBLOCK);'
   - conda create -n testenv --debug --use-local --yes -c quantopian pip python=$TRAVIS_PYTHON_VERSION numpy=$NUMPY_VERSION scipy=$SCIPY_VERSION libgfortran=3.0 ta-lib=$TALIB_VERSION
   - source activate testenv