Add example for exception handling

examples/transmissions/handle_exception.py

@@ -0,0 +1,32 @@
+"""
+This script demonstrates how to use the SparkPostAPIException class. This
+particular example will yield output similar to the following:
+
+$ python send_transmission_exception.py
+400
+{u'errors': [{u'message': u'Invalid domain', u'code': u'7001', u'description':
+u'Unconfigured Sending Domain <some-domain-you-havent-configured.com> '}]}
+['Invalid domain Code: 7001 Description: Unconfigured Sending Domain
+<some-domain-you-havent-configured.com>  \n']
+"""
+
+from sparkpost import SparkPost
+from sparkpost.exceptions import SparkPostAPIException
+
+sp = SparkPost()
+
+try:
+    response = sp.transmissions.send(
+        recipients=['john.doe@example.com'],
+        text='Hello there',
+        from_email='Testing <test@some-domain-you-havent-configured.com>',
+        subject='Testing python-sparkpost exceptions'
+    )
+except SparkPostAPIException as err:
+    # http response status code
+    print(err.status)
+    # python requests library response object
+    # http://docs.python-requests.org/en/master/api/#requests.Response
+    print(err.response.json())
+    # list of formatted errors
+    print(err.errors)