[issue4074] Building a list of tuples has non-linear performance

[Collin Winter]

Collin Winter <collinw at gmail.com> added the comment:

Looking at gctrigger5.patch, my only thought is that it would be 
helpful for posterity to include more verbose comments about why this 
new behaviour was chosen; chunks of Martin's proposal from the 
referenced python-dev thread could be included verbatim.

Otherwise, LGTM.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4074>
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