[issue21523] quadratic-time compilation in the number of 'and' or 'or' expressions

[Antoine Pitrou]

Changes by Antoine Pitrou <pitrou at free.fr>:


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nosy: +benjamin.peterson, brett.cannon, georg.brandl, ncoghlan

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21523>
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