On 27 October 2016 at 07:11, oscar6echo <[email protected]> wrote:

> 3/
> %%time
> for e in os.listdir('.'):
>     os.path.isdir(e)
>     print(e)
>
> --> 1.03s
>
> Much longer !
>

I've had a go at improving our directory listing code without scandir, just
writing it more carefully to avoid unnecessary operations. Can you have a
go with this PR:
https://github.com/jupyter/notebook/pull/1854

It won't make it fast, but I hope it will bring your case under 5 seconds.

Thomas

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