DOC/BLD: Pinning sphinx to 1.5, as 1.7 has been released and it's incompatible with vendored numpydoc (pandas-dev#19743)

datapythonista · harisbal · commit 84a0e23eb597 · 2018-02-28T00:04:27.000Z
diff --git a/ci/requirements_dev.txt b/ci/requirements_dev.txt
@@ -7,4 +7,4 @@ pytest>=3.1
 python-dateutil>=2.5.0
 pytz
 setuptools>=3.3
-sphinx
+sphinx=1.5*
