[Python-Dev] PEP 471 -- os.scandir() function -- a better and faster directory iterator (original) (raw)
Devin Jeanpierre jeanpierreda at gmail.com
Tue Jul 1 01:25:49 CEST 2014
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On Mon, Jun 30, 2014 at 3:07 PM, Tim Delaney <timothy.c.delaney at gmail.com> wrote:
On 1 July 2014 03:05, Ben Hoyt <benhoyt at gmail.com> wrote:
> So, here's my alternative proposal: add an "ensurelstat" flag to > scandir() itself, and don't have any methods on DirEntry, only > attributes. ... > Most importantly, regardless of platform, the cached stat result (if > not None) would reflect the state of the entry at the time the > directory was scanned, rather than at some arbitrary later point in > time when lstat() was first called on the DirEntry object. I'm torn between whether I'd prefer the stat fields to be populated on Windows if ensurelstat=False or not. There are good arguments each way, but overall I'm inclining towards having it consistent with POSIX - don't populate them unless ensurelstat=True. +0 for stat fields to be None on all platforms unless ensurelstat=True.
This won't work well if lstat info is only needed for some entries. Is that a common use-case? It was mentioned earlier in the thread.
-- Devin
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