How Python works: What do you know about support for negative indices?

Giacomo Boffi giacomo.boffi at
Fri Sep 10 11:44:32 CEST 2010

Ben Finney <ben+python at> writes:

> Raymond Hettinger <python at> writes:
>> It doesn't seem to be common knowledge when and how a[x] gets
>> translated to a[x+len(x)].  So, here's a short info post on how Python
>> supports negative indices for sequences.
> Thanks for this. Could you post your messages using a channel that
> doesn't arbitrarily split your paragraphs into long-short-long-short
> lines?

hi Ben, i see that you uses gnus... well, it's gnus that does the
unwanted formatting

try C-u g, as dettailed below, ciao

g runs `gnus-summary-show-article'

`gnus-summary-show-article' is an interactive compiled Lisp function
  -- loaded from "gnus-sum"
(gnus-summary-show-article &optional ARG)

Force redisplaying of the current article.
If ARG (the prefix) is a number, show the article with the charset
defined in `gnus-summary-show-article-charset-alist', or the charset
If ARG (the prefix) is non-nil and not a number, show the raw article
without any article massaging functions being run.  Normally, the key
strokes are `C-u g'.
la lenza penzola
                                           -- PMF, in IHC

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