On Sun, May 15, 2016 at 9:15 PM, Tim Chase <python.l...@tim.thechases.com> wrote: > On 2016-05-15 11:46, Peter Otten wrote: >> def sorted_dir(folder): >> def getmtime(name): >> path = os.path.join(folder, name) >> return os.path.getmtime(path) >> >> return sorted(os.listdir(folder), key=getmtime, reverse=True) >> >> The same idea will work with pathlib and os.scandir(): >> >> def _getmtime(entry): >> return entry.stat().st_mtime >> >> def sd_sorted_dir(folder): >> return sorted(os.scandir(folder), key=_getmtime, reverse=True) > > unless sorted() returns a lazy sorter, you lose most of the advantages > of scandir() being lazy since you have to read the entire directory > list into memory to sort it.
I'm not sure a lazy sorter exists. You can't know which is the oldest/newest file in a directory without knowing all their mtimes. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
