SSH utility

[James Brady]

Hi all,
I'm looking for a python library that lets me execute shell commands
on remote machines.

I've tried a few SSH utilities so far: paramiko, PySSH and pssh;
unfortunately all been unreliable, and repeated questions on their
respective mailing lists haven't been answered...

It seems like the sort of commodity task that there should be a pretty
robust library for. Are there any suggestions for alternative
libraries or approaches?

Thanks!
James