added frame for object reading, including simple test

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/git/errors.py b/lib/git/errors.py
index ecb1c35b..956e007f 100644
--- a/lib/git/errors.py
+++ b/lib/git/errors.py
@@ -10,8 +10,14 @@ Module containing all exceptions thrown througout the git package,
 class InvalidGitRepositoryError(Exception):
     """ Thrown if the given repository appears to have an invalid format.  """
 
-class InvalidDBRoot(Exception):
+class ODBError(Exception):
+	"""All errors thrown by the object database"""
+	
+class InvalidDBRoot(ODBError):
 	"""Thrown if an object database cannot be initialized at the given path"""
+	
+class BadObject(ODBError):
+	"""The object with the given SHA does not exist"""
 
 class NoSuchPathError(OSError):
     """ Thrown if a path could not be access by the system. """