[Python-Dev] Python startup time

Ronald Oussoren ronaldoussoren at mac.com
Wed Oct 10 04:10:01 EDT 2018

> On 9 Oct 2018, at 23:02, Gregory Szorc <gregory.szorc at gmail.com> wrote:
> While we're here, CPython might want to look into getdirentriesattr() as
> a replacement for readdir(). We switched to it in Mercurial several
> years ago to make `hg status` operations significantly faster [2]. I'm
> not sure if it will yield a speedup on APFS though. But it's worth a
> try. (If it does, you could probably make
> os.listdir()/os.scandir()/os.walk() significantly faster on macOS.)

Note that getdirentriesattr is deprecated as of macOS 10.10, getattrlistbulk
is the non-deprecated replacement (introduced in 10.10). 

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