How to get a directory list sorted by date?

[Grant Edwards]

On 2016-05-15, Tim Chase <python.list at 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,

What's a lazy sorter?

-- 
Grant