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Wed Jun 4 19:05:20 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-June/134765.html

Hello,

On Wed, 04 Jun 2014 19:49:18 +0300
Serhiy Storchaka <storchaka at gmail.com> wrote:

[]
> > But show me real-world case for that. Common usecase is scanning
> > string left-to-right, that should be done using iterator and thus
> > O(N). Right-to-left scanning would be order(s) of magnitude less
> > frequent, as and also handled by iterator.
> 
> html.HTMLParser, json.JSONDecoder, re.compile, tokenize.tokenize
> don't use iterators. They use indices, str.find and/or regular
> expressions. Common use case is quickly find substring starting from
> current position using str.find or re.search, process found token,
> advance position and repeat.

That's sad, I agree.

-- 
Best regards,
 Paul                          mailto:pmiscml at gmail.com

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[Python-Dev] Internal representation of strings and Micropython