can't get pushy connection tunneling to work

[bradharmon]

I'm not sure if I'm doing this correctly or not, but the following does not work for me

import pushy
con = pushy.connect("ssh:remote_host", username='foo', password='bar')
remote_pushy = con.modules.pushy
remote_pushy.connect("ssh:another_host", username='foo', password='bar')

Traceback (most recent call last):
  File "<string>", line 383, in __init__
  File "<string>", line 236, in __init__
  File "<string>", line 478, in eval
  File "<string>", line 54, in eval
  File "<string>", line 315, in send_request
  File "<string>", line 420, in __waitForResponse
  File "<string>", line 601, in __recv
  File "<string>", line 104, in receive_message
  File "<string>", line 96, in unpack
  File "<string>", line 60, in read
IOError: End of file

[remote] Traceback (most recent call last):
[remote]   File "<string>", line 1, in ?
[remote]   File "<string>", line 28, in ?
[remote]   File "<string>", line 208, in pushy_server
[remote] ImportError: No module named pushy.server

Traceback (most recent call last):
  File "stuff.py", line 4, in <module>
    remote_pushy.connect("ssh:another_host", username='foo', password='bar')
  File "/home/bharmon/venvs/bdd/lib/python2.7/site-packages/pushy/protocol/proxy.py", line 255, in <lambda>
    (conn.operator(type_, self, args, kwargs))
  File "/home/bharmon/venvs/bdd/lib/python2.7/site-packages/pushy/protocol/connection.py", line 66, in operator
    return self.send_request(type_, (object, args, kwargs))
  File "/home/bharmon/venvs/bdd/lib/python2.7/site-packages/pushy/protocol/baseconnection.py", line 323, in send_request
    return self.__handle(m)
  File "/home/bharmon/venvs/bdd/lib/python2.7/site-packages/pushy/protocol/baseconnection.py", line 639, in __handle
    raise e
pushy.protocol.proxy.ExceptionProxy: End of file

[axw]

I think the problem here is that on the remote side, the PushyPackageLoader doesn't know how to obtain the source. It needs to know about the InMemoryImporter class.