On 23/06/2011 00:10, Neal Becker wrote:
Steven D'Aprano wrote:
On Wed, 22 Jun 2011 15:28:23 -0400, Neal Becker wrote:
AFAICT, the python iterator concept only supports readable iterators,
not write. Is this true?
for example:
for e in sequence:
do something that reads e
e = blah # will do nothing
I believe this is not a limitation on the for loop, but a limitation on
the python iterator concept. Is this correct?
Have you tried it? "e = blah" certainly does not "do nothing", regardless
of whether you are in a for loop or not. It binds the name e to the value
blah.
Yes, I understand that e = blah just rebinds e. I did not mean this as an
example of working code. I meant to say, does Python have any idiom that allows
iteration over a sequence such that the elements can be assigned?
[snip]
Python has references to objects, but not references to references.
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