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Re: Ifs and assignments

References <52C59FF6.5000607@allsup.co> <mailman.4816.1388709915.18130.python-list@python.org> <52c62fa8$0$30001$c3e8da3$5496439d@news.astraweb.com> <mailman.4823.1388720985.18130.python-list@python.org> <roy-9D0E6B.23144702012014@news.panix.com>
Date 2014-01-03 15:25 +1100
Subject Re: Ifs and assignments
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.4828.1388723131.18130.python-list@python.org> (permalink)

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On Fri, Jan 3, 2014 at 3:14 PM, Roy Smith <roy@panix.com> wrote:
> Or turn it into a generator:
> That certainly makes your mainline code cleaner...

Cleaner perhaps, but not clearer. Instead of seeing the original
function (say, a database retrieve-next call), you see a wrapper and
have to go dig to find out what it's actually doing. Unless it's some
kind of generic handler, like:

def funcinator(func,*args):
   while True:
      var = func(*args)
      if var:
         yield var
      else:
         break

while funcinator(cur.getnext):
    ....

But even that would be problematic until it got so thoroughly
understood that it's like enumerate() - which is itself still not
perfect.

ChrisA

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Thread

Re: Ifs and assignments Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-01-02 19:45 -0500
  Re: Ifs and assignments Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-01-03 14:33 +1100
    Re: Ifs and assignments Chris Angelico <rosuav@gmail.com> - 2014-01-03 14:49 +1100
      Re: Ifs and assignments Roy Smith <roy@panix.com> - 2014-01-02 23:14 -0500
        Re: Ifs and assignments Chris Angelico <rosuav@gmail.com> - 2014-01-03 15:25 +1100
        Re: Ifs and assignments Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-03 04:29 +0000
      Re: Ifs and assignments Duncan Booth <duncan.booth@invalid.invalid> - 2014-01-03 15:46 +0000
    Re: Ifs and assignments Chris Angelico <rosuav@gmail.com> - 2014-01-03 14:55 +1100
      Re: Ifs and assignments Roy Smith <roy@panix.com> - 2014-01-02 23:00 -0500
        Re: Ifs and assignments Chris Angelico <rosuav@gmail.com> - 2014-01-03 15:08 +1100

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