[issue8685] set(range(100000)).difference(set()) is slow
report at bugs.python.org
Tue Aug 10 01:40:13 CEST 2010
Andrew Bennetts <spiv at users.sourceforge.net> added the comment:
Alexander: yes, they are complementary. My patch improves set.difference, which always creates a new set. issue8425 on the other hand improves in-place difference (via the -= operator or set.difference_update). Looking at the two patches, my patch will not improve in-place difference, and issue8425's patch will not improve set.difference. So they are complementary.
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