Comment exceptions

cloudcontrol/node/exc.py

@@ -2,22 +2,27 @@
 
 
 class CCNodeError(Exception):
+    """Base exception class for cc-node."""
     pass
 
 
 class PluginError(CCNodeError):
+    """Exception related to plugin execution."""
     pass
 
 
 class UndefinedDomain(CCNodeError):
+    """Operation on a domain that does not exist was tried."""
     pass
 
 
 class PoolStorageError(CCNodeError):
+    """Pool or volume was not found."""
     pass
 
 
 class TunnelError(CCNodeError):
+    """Error occured during TunnelJob execution."""
     pass
 
 
@@ -27,16 +32,20 @@ class DRBDAllocationError(CCNodeError):
 
 
 class DRBDError(CCNodeError):
+    """Error occured during DRBDJob execution."""
     pass
 
 
 class ConsoleAlreadyOpened(CCNodeError):
+    """VM virtio console is already opened."""
     pass
 
 
 class VMMigrationError(CCNodeError):
+    """Error during live migration job."""
     pass
 
 
 class JobError(CCNodeError):
+    """General exception for a job."""
     pass