Installing subversion bindings in Windows standalone exe

[Paul Moore]

I want to use the convert extension to track a remote Subversion
repository. In order to do this, I need the Python subversion bindings
installed. As I'm using the standalone Windows binary (from
http://mercurial.berkwood.com/) I'm not sure how I can do this - is
there anywhere that the standalone installer EXE will recognise as
containing additional Python packages, where I can put the Subversion
bindings?

(I guess it's possible that TortoiseHg includes the Subversion
bindings - it's not clear from the description. However, I definitely
do not want any of the Explorer integration, etc, so TortoiseHg is
only of use to me as an option if it's possible to install it as a
purely command line version).

Thanks for any help,
Paul.