[issue11553] Docs for: import, packages, site.py, .pth files

[Éric Araujo]

Changes by Éric Araujo <merwok at netwok.org>:


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dependencies: +Better document user site-packages in site module doc, setup.py install --user option undocumented

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11553>
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