Not the widget, the function in Canvas. So far as I can tell, integer values for scale work fine; you can scale something to a factor of 2, 3, 17, etc. Float values for scale - such as you might use if you were, say, trying to scale a rectangle to half its current size - also work, insofar as the targets of the scale-function are resized. The problem is that, in addition to this resizing, they're sent hurtling off the canvas with remarkable speed; rightwards if there's a float for the x-scale, downwards if there's a float for the y-scale, bottom-rightwards if both are floats. It's entertaining, but rather unhelpful.
Code that caused the problem (unlikely to be helpful, but no reason not to include it): self.canvas.scale(self.body,self.radius/(self.radius-.5),self.radius/(self.radius-.05),0,0)#radius is greater than .5 Running Python 2.6 on Vista.
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