[docs] [issue22558] Missing doc links to source code for Python-coded modules.

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


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assignee: docs at python -> terry.reedy
stage: patch review -> commit review

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22558>
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