title: Get the current coordinates of an item on a Canvas widget given its item handle?
body: <p>From reading the docs (<a href="http://effbot.org/tkinterbook/canvas.htm#reference" rel="nofollow">http://effbot.org/tkinterbook/canvas.htm#reference</a>), there doesn't appear to me to be a way to do this. Just wanted to make sure I hadn't made a mistake. (I.e. one would have to internally store the coordinates of various items in a program if one wanted to do boundary checking, for example. [e.g. Check, before moving an oval, that it will not bump into a wall, represented by a line on the current canvas, the coordinate information of which is also stored.]) </p>