adding notes about dealing with exceptions in the client

Change-Id: I661b10414e0281bc695236bb32f985b0ef5b7600

1 files changed, 4 insertions, 0 deletions

diff --git a/doc/source/using-api.rst b/doc/source/using-api.rst
index b5d630c..fb1aa3a 100644
--- a/doc/source/using-api.rst
+++ b/doc/source/using-api.rst
@@ -29,6 +29,10 @@ You create a valid ``keystoneclient.v2_0.client.Client`` object by passing
 authentication data to the constructor. Authentication and examples of common
 tasks are provided below.
 
+You can generally expect that when the client needs to propogate an exception
+it will raise an instance of subclass of
+``keystoneclient.exceptions.ClientException``
+
 Authenticating
 ==============