[issue10059] add the method `index` to collections.deque

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

The absence of index() from collections deque wasn't an oversight.  Deques are not really about indexed access, they are about appending and popping from the ends.  I'm curious about your use case and whether it is a good match for this data structure.

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assignee:  -> rhettinger
components: +Extension Modules -Library (Lib)
priority: normal -> low

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10059>
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