[issue6017] Dict fails to notice addition and deletion of keys during iteration

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

The precisionist in me insists that at a minimum 'will' should be changed
to 'may'.  Otherwise either the docs are lying or the implementation
has a bug.

Or perhaps we could add a footnote about the intentionally divergent
behavior of the CPython implementation?

(As Terry pointed out these docs may be used by other implementors as a
prescriptive guide, just as the language reference is.)

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nosy: +r.david.murray

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