[issue13903] New shared-keys dictionary implementation

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

As Victor I think the tunables could be changed separately, unless they truely get in the way of the shared-keys optimization.

By the way, there will need a "protection" for the case where instances are used as bags of key/value pairs (dict-alikes with attribute access). Perhaps bound the size of the keys array to 100 entries and then switch into unshared mode.

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<http://bugs.python.org/issue13903>
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