>>> Quoting from >>> http://www.python.org/dev/peps/pep-0008/#other-recommendations >>> (with elision): >>> >>> Use spaces around arithmetic operators: >>> No: >>> i=i+1 >>> submitted +=1 >>> x = x*2 - 1 >>> hypot2 = x*x + y*y >>> c = (a+b) * (a-b) >>> >>> End quote. >> >> >> I agree that this could be reworded. Especially when the operands are >> as short as in the examples, the last three "No"s read better to me than >> the "Yes" entries. In this case, spacing serves for visually grouping >> expressions by precedence, which otherwise could also be indicated by >> (semantically unnecessary) parens. > > Indeed. I don't know who put that in, it wasn't me. > >> But in all cases discussed here, PEP8 should not be seen as a law. >> Its second section ("A Foolish Consistency is the Hobgoblin of Little >> Minds") is quite prominent for a reason. > > I think whoever put that blanket rule in the PEP fell prey to this. > > Let's change this to something more reasonable, e.g. > > """ > If operators with different priorities are used, consider adding > whitespace around the operators with the lowest priority(ies). This is > very much to taste, however, never use more than one space, and always > have the same amount of whitespace on both sides of a binary operator. > """
+1, a very welcome change to a piece of PEP8 I've always felt uncomfortable with. Tiny nitpick: I'd just replace the comma following "however" with a period or semicolon. Eli _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
