diff -r 000000000000 -r ca70ae20a155 src/extras/pyrepl/dumbpickle.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/extras/pyrepl/dumbpickle.py	Tue Feb 16 10:07:05 2010 +0530
@@ -0,0 +1,38 @@
+# A really dumb pickle replacement, that converts the given object into a
+# string with the repr function. Only objects that support repr and
+# for which eval(repr(a))==a holds are accepted.
+#
+# Copyright (c) 2005 Nokia Corporation
+#
+# 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.
+
+
+def dump(obj, file, protocol=None, bin=None):
+    file.write(dumps(obj,protocol,bin))
+
+def dumps(obj, protocol=None, bin=None):
+    if protocol or bin:
+        raise "Arguments protocol and bin not implemented."
+    objstr=repr(obj)
+    # check that the object can be unpickled properly
+    if eval(objstr)!=obj:
+        raise "Sorry, dumbpickle can't pickle this object because "+\
+              "eval(repr(obj))!=obj."
+    return objstr
+
+def load(file):
+    return loads(' '.join(file.readlines()))
+
+def loads(string):
+    return eval(string)
+