On Wed, 27 May 2009 12:58:02 +0000, Albert van der Horst wrote: >>And how is reduce() supposed to know whether or not some arbitrary >>function is commutative? > > Why would it or need it? A Python that understands the ``par'' keyword > is supposed to know it can play some tricks with optimizing reduce() if > the specific function is commutative.
Fine. Move the smarts out of reduce() into the compiler. How is the compiler supposed to know if an arbitrary function is commutative? -- Steven -- http://mail.python.org/mailman/listinfo/python-list
