[issue5529] Backport sys module docs involving import to 2.7

[Brett Cannon]

New submission from Brett Cannon <brett at python.org>:

The updated documentation in py3k involving the sys module and imports
(meta_path, path_hooks, and path_importer_cache) should get backported
to trunk. Slightly involved since there are glossary term references
that have not been backported.

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assignee: georg.brandl
components: Documentation
messages: 83917
nosy: brett.cannon, georg.brandl
priority: low
severity: normal
stage: needs patch
status: open
title: Backport sys module docs involving import to 2.7
type: feature request
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5529>
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