(This is completely beside the point.)<p>&gt; comparing two of them is conceptually pretty sensible.<p>Well, there are a bunch of sensible ways to do it, depending what the angle represents. You might not want to privilege any of them over the others directly in the class.<p>Is it a point on the unit circle? It doesn&#x27;t make much sense to compare (sqrt(2), sqrt(2)) to (-1, 0).<p>Is it an angular distance to travel from point A to point B? Then you want 355 and -5 to both be less than 10.<p>Is it an amount that a screw has to be rotated? Then you can&#x27;t take mods, so 720 &gt; 360 &gt; 0.<p>Do you have a robot that can only turn anticlockwise? Then maybe 5 &lt; -10 &lt; 355. This is the comparison implied by the implementation in TFA (self.degrees = degrees % 360), but it&#x27;s pretty obscure.