On Monday, March 21, 2016 at 12:11:19 PM UTC+5:30, Steven D'Aprano wrote: > On Monday 21 March 2016 13:11, Ben Finney wrote: > > > BartC writes: > > > >> I don't have a clue about exceptions > > > > Please, stop making assertions about Python code until you have learned > > Python. > > > I don't see how "I don't have a clue about exceptions" is an assertion about > Python code. > > I think there's a lot of hostility aimed at Bart, undeserved hostility, > because he continues to demonstrate that Python is not as fast as it could > be. I don't see that Bart is trolling or being malicious, although I do > think he perhaps hasn't fully grasped the idea that *we know*, and we're > willing to live with reduced speed in favour of certain design choices. > > (Ironically, for all that we as a community will go to the battlements to > fight to the death to keep these dynamic features, we'll also tar and > feather anyone who actually *uses* them. I've even seen people criticise > Raymond Hettinger, one of the most experienced and competent senior Python > guys, because his "namedtuple" uses exec. Go figure.) > > I'll ask everyone to please give Bart the benefit of the doubt and assume > good faith. Rather than snark at him if he writes un-Pythonic code, teach > him how to write it better, don't just sneer at the poor quality of his code > or fob him off onto another list. > > (Bart, I am also on the tutor mailing list that Ben suggested, and you would > be welcome them.)
Thanks Steven for a reasonable response. Mark's comments are in joke category. He has the highest #posts/#python-knowledge ratio out here Chris and Ben's responses smell like sour grapes. Notice how such responses seem to get sharper as the (imagined) criticism of python increases Bart(C): The best use of exceptions is to not bother about them: Ignore: >>> open("NonExistentFile") Traceback (most recent call last): File "<stdin>", line 1, in <module> IOError: [Errno 2] No such file or directory: 'NonExistentFile' Handle: >>> try: ... open("NonExistentFile") ... except IOError as i: ... print i ... [Errno 2] No such file or directory: 'NonExistentFile' >>> So the payoff you get for the 4 extra lines of explicit handling is no traceback Ok... But tracebacks are not that bad are they? And JFTR: Pointing out unsatisfactory usage of one language feature when you are trying to focus on another looks frankly silly to me. The more reasonable response may be: If you are suggesting a new/changed feature you should be doing that on the ideas list About switch/case: Almost every modern functional language has a case that is way more powerful (and as efficient) as the imasculated imperative case/switch. See my post in the other thread on "case" for a small list of such languages Why settle for a ½-assed choice? -- https://mail.python.org/mailman/listinfo/python-list