X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/16413f6ebe1bba3a070cdff3d7436ad508db8514..f12350f25275fbf4c6c8692122f5eacce89794ee:/sdk/python/arvados/errors.py

diff --git a/sdk/python/arvados/errors.py b/sdk/python/arvados/errors.py
index b4afb21f11..1d9c77851e 100644
--- a/sdk/python/arvados/errors.py
+++ b/sdk/python/arvados/errors.py
@@ -1,5 +1,16 @@
 # errors.py - Arvados-specific exceptions.
 
+import apiclient.errors
+import json
+
+class ApiError(apiclient.errors.HttpError):
+    def _get_reason(self):
+        try:
+            return '; '.join(json.loads(self.content)['errors'])
+        except (KeyError, TypeError, ValueError):
+            return super(ApiError, self)._get_reason()
+
+
 class ArgumentError(Exception):
     pass
 class SyntaxError(Exception):
@@ -16,3 +27,5 @@ class NotImplementedError(Exception):
     pass
 class NoKeepServersError(Exception):
     pass
+class StaleWriterStateError(Exception):
+    pass