[issue16034] bz2 module appears slower in Python 3.x versus Python 2.x
Nadeem Vawda
report at bugs.python.org
Tue Oct 9 00:18:33 CEST 2012
Nadeem Vawda added the comment:
I've released v0.95 of bz2file, which incorporates all the optimizations discussed here. The performance should be similar to 2.x's bz2 in most cases.
It is still a lot slower when calling read(10) or read(1), but I hope no-one is doing that anywhere where performance is important ;-)
One other note: bz2file's readline() is faster when running on 3.x than on 2.x (and in some cases faster than the 2.x stdlib version). This is probably due to improvements made to io.BufferedIOBase.readline() since 2.7, but I haven't had a chance to investigate this.
Let me know if you have any issues with the new release.
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