a few formatting fixes and moved exception

1 files changed, 12 insertions, 0 deletions

diff --git a/nova/exception.py b/nova/exception.py
index 29bcb17f8..b8894758f 100644
--- a/nova/exception.py
+++ b/nova/exception.py
@@ -26,6 +26,18 @@ import sys
 import traceback
 
 
+class ProcessExecutionError(IOError):
+    def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
+                 description=None):
+        if description is None:
+            description = "Unexpected error while running command."
+        if exit_code is None:
+            exit_code = '-'
+        message = "%s\nCommand: %s\nExit code: %s\nStdout: %r\nStderr: %r" % (
+                  description, cmd, exit_code, stdout, stderr)
+        IOError.__init__(self, message)
+
+
 class Error(Exception):
     def __init__(self, message=None):
         super(Error, self).__init__(message)