On 8/31/2013 7:15 PM, Joshua Landau wrote:
On 31 August 2013 23:08, Chris Angelico <ros...@gmail.com> wrote:
On Sun, Sep 1, 2013 at 1:43 AM, Oscar Benjamin
<oscar.j.benja...@gmail.com> wrote:
On 31 August 2013 16:30, Chris Angelico <ros...@gmail.com> wrote:
but doesn't solve all the cases (imagine a string or an iterator).
Similar but maybe simpler, and copes with more arbitrary iterables:
it=iter(range(5))
print(next(it), end='')
for i in it:
print('',i, end='')
If you want to work with arbitrary iterables then you'll want
it = iter(iterable)
try:
val = next(it)
except StopIteration:
pass # Or raise or something?
else:
print(val, end='')
for i in it:
print('', i, end='')
I went with this version:
except StopIteration:
raise
In other words, if it's going to bomb, let it bomb :)
I think the point is that StopIteration is an unsafe error to raise.
It should only be raised by iterator.__next__ method and caught by
iterator user and not re-raised. Raise something like "ValueError('empty
iterable') from None" instead.
--
Terry Jan Reedy
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