Comment 1 for bug 215127

This seems to be an interaction between ssh and parameters passed to it. By using a list, we are properly passing it as a single argument, but then ssh passes it to the next shell as a plain string.

It happens on the command line as well:
ssh juju python -c "import sys; print sys.argv" fo bar bar
sys.argv fo bar bar
  File "<string>", line 1
    import
         ^
SyntaxError: invalid syntax

versus:
ssh juju python -c "'import sys; print sys.argv'" fo bar bar
['-c', 'fo', 'bar', 'bar']

I wish there was a better way, since this would have problems if there was a ", etc. But I guess as a workaround for how ssh invokes the remote shell, it is all we can really do. I'll merge it.