follow instructions given here:
http://lazutkin.com/blog/2006/feb/18/setting-tools-windows/
verify those svn bindings:
http://pysvn.tigris.org/
pysvn bindings are not used by trac.
instructions contain a smal defect:
change all dll files within /site_packages/libsvn/, including "libsvn_swig_py-1.dll".
replace refereces "python23" to "python24" (once per dll).