[Python-Dev] PEP 428 - pathlib (original) (raw)

[Python-Dev] PEP 428 - pathlib - ready for approval

Chris Barker chris.barker at noaa.gov
Wed Nov 20 23:43:26 CET 2013

On Wed, Nov 20, 2013 at 1:39 PM, Giampaolo Rodola' <g.rodola at gmail.com>wrote:

Isn't this redundant?

>>> Path.cwd() PosixPath('/home/antoine/pathlib') Probably this is just personal taste but I'd prefer the more explicit: >>> Path(os.getcwd()) PosixPath('/home/antoine/pathlib') I understand all the os.* replication (Path.rename, Path.stat etc.) but all these methods assume you're dealing with an instantiated Path instance whereas Path.cwd is the only one which doesn't.

That's a standard pattern for using a classmethod as an alternate constructor -- similar to:

datetime.now() dict.fromkeys() etc....

and it can really reduce namespace clutter (do you really want to import both os and path for this? (OK, you way well be importing os anyway, but...)

It also allows you to get that functionality in a subclass.

Anyway, it's not that different, and I like it ;-)

Other than that the module looks absolutely awesome and a big improvement

over os.path!

indeed -- thanks for moving this forward, it is a long time coming!

By the way, for us dinosaurs is this going to exactly match the pathlib implementation that can be used with py2?

-Chris

--

Christopher Barker, Ph.D. Oceanographer

Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception

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