OBSFile does not implement seekable, readable and writeable

[tophers42]

I believe OBSFile is intended to implement the io.IOBase interface (https://docs.python.org/3/library/io.html#io.IOBase), but it does not implement seekable, readable, and writeable. Additionally, it does not subclass the io.IOBase interface, although it seems like it should.

[kyleabeauchamp]

On a related note, I noticed recently that S3FS implements some of these base member functions through this library: https://github.com/intake/filesystem_spec (https://github.com/dask/s3fs/blob/master/requirements.txt#L3)

[jtratner]

Kyle - that library looks super cool! Maybe we can present an “fs spec” compatible interface that uses the current stor API under the hood. Christoph - now that I’ve read implementation, since we just present a buffer under the hood - I think `seekable` and `readable` should always return True in read mode. What does local file pointer do in write mode? It should return same thing as there. Want to put up PR?

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On Wed, Jul 24, 2019 at 14:31 Kyle Beauchamp ***@***.***> wrote: On a related note, I noticed recently that S3FS implements some of these base member functions through this library: https://github.com/intake/filesystem_spec ( https://github.com/dask/s3fs/blob/master/requirements.txt#L3) — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#119?email_source=notifications&email_token=AAMGHK3BKVNZUCAUJIVNCTTQBDC33A5CNFSM4IGUUCV2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2XVRRI#issuecomment-514808005>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAMGHK4PCZW5W44AYXVGC4DQBDC33ANCNFSM4IGUUCVQ> .