[Python-Dev] PEP 471 -- os.scandir() function -- a better and faster directory iterator (original) (raw)
Akira Li 4kir4.1i at gmail.com
Sat Jun 28 15:05:31 CEST 2014
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Ben Hoyt <benhoyt at gmail.com> writes:
Hi Python dev folks,
I've written a PEP proposing a specific os.scandir() API for a directory iterator that returns the stat-like info from the OS, *the main advantage of which is to speed up os.walk() and similar operations between 4-20x, depending on your OS and file system.* ... http://legacy.python.org/dev/peps/pep-0471/ ... Specifically, this PEP proposes adding a single function to the
osmodule in the standard library,scandir, that takes a single, optional string as its argument:: scandir(path='.') -> generator of DirEntry objects
Have you considered adding support for paths relative to directory descriptors 1 via keyword only dir_fd=None parameter if it may lead to more efficient implementations on some platforms?
-- akira
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