pushy connection fails against remote python 2.4.3

[bradharmon]

Somewhere between pushy 0.5.1 and 0.5.3, creating a pushy connection fails with a local python version of 2.6.6 and a remote python version of 2.4.3. Downgrading to pushy 0.5.1 solves the issue.

conn = pushy.connect('ssh:random_box', username='root', password='blah')

  File "/usr/lib/python2.6/site-packages/pushy/client.py", line 580, in connect
    return PushyClient(target, **kwargs)
  File "/usr/lib/python2.6/site-packages/pushy/client.py", line 386, in __init__
    self.modules = AutoImporter(self)
  File "/usr/lib/python2.6/site-packages/pushy/client.py", line 236, in __init__
    remote_compile = self.__client.eval("compile")
  File "/usr/lib/python2.6/site-packages/pushy/client.py", line 475, in eval
    return self.remote.eval(code, globals, locals)
  File "/usr/lib/python2.6/site-packages/pushy/protocol/connection.py", line 54, in eval
    return self.send_request(MessageType.evaluate, args)
  File "/usr/lib/python2.6/site-packages/pushy/protocol/baseconnection.py", line 321, in send_request
    m = self.__waitForResponse(handler)
  File "/usr/lib/python2.6/site-packages/pushy/protocol/baseconnection.py", line 426, in __waitForResponse
    m = self.__recv()
  File "/usr/lib/python2.6/site-packages/pushy/protocol/baseconnection.py", line 607, in __recv
    m = self.__istream.receive_message()
  File "/usr/lib/python2.6/site-packages/pushy/protocol/baseconnection.py", line 104, in receive_message
    return Message.unpack(self.__file)
  File "/usr/lib/python2.6/site-packages/pushy/protocol/message.py", line 96, in unpack
    header = read(file, Message.PACKING_SIZE)
  File "/usr/lib/python2.6/site-packages/pushy/protocol/message.py", line 60, in read
    raise IOError, "End of file"
pushy.client.ClientInitException: 

[axw]

Thanks for reporting the problem. I'm away for work at the moment, will hopefully get to this in a couple of days.

[axw]

Should be fixed now. Please reopen if the issue persists.

[gregnwosu]

dont think this is fixed im seeing the same issue running python2.6 against unix python2.4 with your patch applied

[axw]

@gregnwosu I can successfully connect a Python 2.6 to 2.4 interpreter. If you can provide a set of steps to reproduce the issue, someone may be able to help (I can't guarantee it'll be me, though).

[gregnwosu]

I've done a little more investigation, it seems that these errors occur when connecting to python 2.3

Ive also observed strange behaviour when connecting from inside unit tests , especially using nose which tends to capture output streams

[axw]

@gregnwosu Ah, that makes sense then; Pushy does not support 2.3 (or earlier). I don't recall the reason why. If it can be made to work with minimal changes, I'd probably accept a pull request.