--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/thirdparty/google_appengine/google/appengine/api/datastore_errors.py	Tue Aug 26 21:49:54 2008 +0000
@@ -0,0 +1,105 @@
+#!/usr/bin/env python
+#
+# Copyright 2007 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""Errors used in the Python datastore API."""
+
+
+
+
+
+
+class Error(Exception):
+  """Base datastore error type.
+  """
+
+class BadValueError(Error):
+  """Raised by Entity.__setitem__(), Query.__setitem__(), Get(), and others
+  when a property value or filter value is invalid.
+  """
+
+class BadPropertyError(Error):
+  """Raised by Entity.__setitem__() when a property name isn't a string.
+  """
+
+class BadRequestError(Error):
+  """Raised by datastore calls when the parameter(s) are invalid.
+  """
+
+class EntityNotFoundError(Error):
+  """DEPRECATED: Raised by Get() when the requested entity is not found.
+  """
+
+class BadArgumentError(Error):
+  """Raised by Query.Order(), Iterator.Next(), and others when they're
+  passed an invalid argument.
+  """
+
+class QueryNotFoundError(Error):
+  """DEPRECATED: Raised by Iterator methods when the Iterator is invalid. This
+  should not happen during normal usage; it protects against malicious users
+  and system errors.
+  """
+
+class TransactionNotFoundError(Error):
+  """DEPRECATED: Raised by RunInTransaction. This is an internal error; you
+  should not see this.
+  """
+
+class Rollback(Error):
+  """May be raised by transaction functions when they want to roll back
+  instead of committing. Note that *any* exception raised by a transaction
+  function will cause a rollback. This is purely for convenience. See
+  datastore.RunInTransaction for details.
+  """
+
+class TransactionFailedError(Error):
+  """Raised by RunInTransaction methods when the transaction could not be
+  committed, even after retrying. This is usually due to high contention.
+  """
+
+class BadFilterError(Error):
+  """Raised by Query.__setitem__() and Query.Run() when a filter string is
+  invalid.
+  """
+  def __init__(self, filter):
+    self.filter = filter
+
+  def __str__(self):
+    return (u'BadFilterError: invalid filter: %s.' % self.filter)
+
+class BadQueryError(Error):
+  """Raised by Query when a query or query string is invalid.
+  """
+
+class BadKeyError(Error):
+  """Raised by Key.__str__ when the key is invalid.
+  """
+
+class InternalError(Error):
+  """An internal datastore error. Please report this to Google.
+  """
+
+class NeedIndexError(Error):
+  """No matching index was found for a query that requires an index. Check
+  the Indexes page in the Admin Console and your index.yaml file.
+  """
+
+class Timeout(Error):
+  """The datastore operation timed out. This can happen when you attempt to
+  put, get, or delete too many entities or an entity with too many properties,
+  or if the datastore is overloaded or having trouble.
+  """