On Thu, Dec 31, 2009 at 11:24 PM, Chris Rebert <c...@rebertia.com> wrote: > On Thu, Dec 31, 2009 at 8:47 PM, Peng Yu <pengyu...@gmail.com> wrote: >> I observe that python library primarily use exception for error >> handling rather than use error code. >> >> In the article API Design Matters by Michi Henning >> >> Communications of the ACM >> Vol. 52 No. 5, Pages 46-56 >> 10.1145/1506409.1506424 >> http://cacm.acm.org/magazines/2009/5/24646-api-design-matters/fulltext >> >> It says "Another popular design flaw—namely, throwing exceptions for >> expected outcomes—also causes inefficiencies because catching and >> handling exceptions is almost always slower than testing a return >> value." >> >> My observation is contradicted to the above statement by Henning. If >> my observation is wrong, please just ignore my question below. >> >> Otherwise, could some python expert explain to me why exception is >> widely used for error handling in python? Is it because the efficiency >> is not the primary goal of python? > > Correct; programmer efficiency is a more important goal for Python instead. > Python is ~60-100x slower than C;[1] if someone is worried by the > inefficiency caused by exceptions, then they're using completely the > wrong language.
Could somebody let me know how the python calls and exceptions are dispatched? Is there a reference for it? -- http://mail.python.org/mailman/listinfo/python-list
