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

Éric Araujo <merwok@netwok.org> added the comment: Thanks for the catch! I was so used to the idiom where opening the file doesn’t fail but you protect the read or write that I didn’t think about the issue here. ---------- stage: commit review -> committed/rejected status: open -> closed _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue10461> _______________________________________