more docs for exceptions

jreback · Apr 3, 2017 · 3dc4b9a · 3dc4b9a
1 parent 2bb1fbd
commit 3dc4b9a
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/pandas/errors/__init__.py b/pandas/errors/__init__.py
@@ -12,8 +12,10 @@ class PerformanceWarning(Warning):
     """
 
 class UnsupportedFunctionCall(ValueError):
-    pass
-
+    """
+    If attempting to call a numpy function on a pandas
+    object. For example using ``np.cumsum(groupby_object)``.
+    """
 
 class UnsortedIndexError(KeyError):
     """