diff -r 5ff1fc726848 -r c6bca38c1cbf eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/mercurial/error.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eggs/mercurial-1.7.3-py2.6-linux-x86_64.egg/mercurial/error.py	Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,81 @@
+# error.py - Mercurial exceptions
+#
+# Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2 or any later version.
+
+"""Mercurial exceptions.
+
+This allows us to catch exceptions at higher levels without forcing
+imports.
+"""
+
+# Do not import anything here, please
+
+class RevlogError(Exception):
+    pass
+
+class LookupError(RevlogError, KeyError):
+    def __init__(self, name, index, message):
+        self.name = name
+        if isinstance(name, str) and len(name) == 20:
+            from node import short
+            name = short(name)
+        RevlogError.__init__(self, '%s@%s: %s' % (index, name, message))
+
+    def __str__(self):
+        return RevlogError.__str__(self)
+
+class CommandError(Exception):
+    """Exception raised on errors in parsing the command line."""
+
+class Abort(Exception):
+    """Raised if a command needs to print an error and exit."""
+    def __init__(self, *args, **kw):
+        Exception.__init__(self, *args)
+        self.hint = kw.get('hint')
+
+class ConfigError(Abort):
+    'Exception raised when parsing config files'
+
+class ParseError(Exception):
+    'Exception raised when parsing config files (msg[, pos])'
+
+class RepoError(Exception):
+    pass
+
+class RepoLookupError(RepoError):
+    pass
+
+class CapabilityError(RepoError):
+    pass
+
+class LockError(IOError):
+    def __init__(self, errno, strerror, filename, desc):
+        IOError.__init__(self, errno, strerror, filename)
+        self.desc = desc
+
+class LockHeld(LockError):
+    def __init__(self, errno, filename, desc, locker):
+        LockError.__init__(self, errno, 'Lock held', filename, desc)
+        self.locker = locker
+
+class LockUnavailable(LockError):
+    pass
+
+class ResponseError(Exception):
+    """Raised to print an error with part of output and exit."""
+
+class UnknownCommand(Exception):
+    """Exception raised if command is not in the command table."""
+
+class AmbiguousCommand(Exception):
+    """Exception raised if command shortcut matches more than one command."""
+
+# derived from KeyboardInterrupt to simplify some breakout code
+class SignalInterrupt(KeyboardInterrupt):
+    """Exception raised on SIGTERM and SIGHUP."""
+
+class SignatureError(Exception):
+    pass