[MERGE] Ensure that ftp transport are always in binary mode.

[John Arbash Meinel]

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Vincent Ladeuil wrote:
> Long story short: the ftp transport wasn't properly ensuring the mode to be binary.
> 
> Moderately short version: I can't currently run the test suite
> for python-2.6 due to a bug in medusa (out ftp test server).
> 
> So I searched (for months) and finally found a better (at least
> from a test point of view) ftp server:
> http://code.google.com/p/pyftpdlib/
> 
> I've added support for it in the local-test-server plugin and
> checked that it passes all transport tests (i.e. the one that
> medusa failed to pass) for both python-2.5 and python-2.6.
> 
> Hurrah.

...

> 
> The next step will be to replace medusa by pyftpdlib and I'm
> seeking ideas about how we should proceed here:
> 
> - at a minimum it should be installed on pqm,

Well, pqm uses python2.4 so it probably doesn't matter too much.

> 
> - pyftpdlib is not packaged for Ubuntu (who knows how to achieve
>   that and is willing to do it)
> 
> - should we support *both* ftp test servers (;-/) or how to we
>   achieve the transition,
> 
>    Vincent
> 
> 

BB:approve

John
=:->
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