[issue22609] Constructors of some mapping classes don't accept `self` keyword argument

[Raymond Hettinger]

Changes by Raymond Hettinger <raymond.hettinger at gmail.com>:


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assignee: serhiy.storchaka -> rhettinger
priority: high -> normal

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22609>
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