appengine mapreduce install problem

[peterchen16-zz]

The problem is: as far as I understand I should see something on myapp.com/mapreduce but all I get is the following error message:

Traceback (most recent call last): File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 240, in Handle handler = _config_handle.add_wsgi_middleware(self._LoadHandler()) File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 299, in _LoadHandler handler, path, err = LoadObject(self._handler) File "/base/data/home/runtimes/python27/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 96, in LoadObject import(cumulative_path) File "/base/data/home/apps/e~xxxxx-test/v1.394666648272080269/mapreduce/main.py", line 39, in from mapreduce import handlers File "/base/data/home/apps/e~xxxxx-test/v1.394666648272080269/mapreduce/handlers.py", line 46, in from mapreduce import base_handler File "/base/data/home/apps/e~xxxxx-test/v1.394666648272080269/mapreduce/base_handler.py", line 37, in pipeline_base = importlib.import_module('mapreduce.pipeline_base') File "/base/data/home/runtimes/python27/python27_dist/lib/python2.7/importlib/init.py", line 37, in import_module import(name) File "/base/data/home/apps/e~xxxxx-test/v1.394666648272080269/mapreduce/pipeline_base.py", line 18, in import pipeline ImportError: No module named pipeline