[docs] [issue16509] sqlite3 docs do not explain check_same_thread

Changes by Ezio Melotti <ezio.melotti@gmail.com>: ---------- nosy: +ghaering stage: -> needs patch versions: +Python 3.2, Python 3.4 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue16509> _______________________________________