Raymond Hettinger <raymond.hettin...@gmail.com> added the comment:
I think this note can be removed. The tutorial now has coverage of mutating
while iterating. That is the correct place for discussion of looping
techniques.
The part about the "internal counter" needs to be rewritten and moved to
stdtypes.rst section on Sequence types. Here is a first draft:
"Forward and reversed iterators over sequences access values using an index.
That index will continue to march forward (or backward) even if the underlying
sequence is mutated. The iterator terminates only when an IndexError or
StopIteration is encountered (or when the index drops below zero)."
Sequence iterators are roughly equivalent to:
def seqiter(seq):
i = 0
while True:
try:
yield seq[i]
except (IndexError, StopIteration):
break
i += 1
----------
assignee: docs@python -> rhettinger
nosy: +rhettinger
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue46095>
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