[Python-ideas] Speed up os.walk() 5x to 9x by using file attributes from FindFirst/NextFile() and readdir()

Greg Ewing greg.ewing at canterbury.ac.nz
Fri Nov 16 23:45:11 CET 2012

Mike Meyer wrote:
> I can see a number of alternatives to improve this situation:
> 1) wrap the return partial stat info in a proxy object
> 2) Make iterdir_stat an os.walk internal tool, and don't export it.
> 3) Add some kind of "we have a full stat" indicator,
> 4) document one of the a stat values as a "we have a full stat" indicator,
> 5) Add a keyword argument to ... always do the full stat.
> 6) Depreciate os.walk, and provide os.itertree

7) Provide an iterdir() with a way of specifying exactly
which stat fields you're interested in. Then it can perform
stat calls if and only if needed, and the user doesn't have
to tediously test for presence of things in the result.


More information about the Python-ideas mailing list