[docs] [issue10461] Use with statement throughout the docs

Vinay Sajip <vinay_sajip@yahoo.co.uk> added the comment: I've already made the change, Terry, just holding off committing it because Georg has frozen the py3k branch until 3.2b2 is released. There are a few other changes I'm making, will commit these soon after 3.2b2 is released. ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue10461> _______________________________________