pin to ipython 4.0.1

wholmgren · wholmgren · commit 9025cfcdf9f0 · 2016-02-10T11:49:46.000-07:00
diff --git a/docs/environment.yml b/docs/environment.yml
@@ -7,7 +7,7 @@ dependencies:
     - pytz
     - ephem
     - numba
-    - ipython
+    - ipython=4.0.1
     - sphinx
     - numpydoc
     - matplotlib
