On 2012-10-28, Devin Jeanpierre <jeanpierr...@gmail.com> wrote: >>> The 'canonical way' >>> while True: >>> line = complex_expression >>> if not line: >>> break >>> do_something_with(line) >>> >>> avoids this problem, but I was never really convinced about the beauty / >>> readbility of this construct. >>> >>> In >>> my opinion I shouldn't be obliged to read any of the indented lines of >>> the while statement on a first 'visual' pass through somebody elses code >>> and still be able to see what the loop iterates through. >> >> Fine. Then write your code as: >> >> line = function(x, y, z) >> while line: >> do something with(line) >> line = function(x, y, z) > > We have a problem, and two solutions. Solution 1 has downside > A, and solution 2 has downside B. If he complains about > downside A, you say, well, use solution 2. If he complains > about downside B, you say, well, use solution 1. > > What if he wants to avoid both downsides A and B? What solution > does he use then?
You abandon the while loop and compose a generator. -- Neil Cerutti -- http://mail.python.org/mailman/listinfo/python-list
