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Python Pachyderm Client

Project description

A python client wrapper for Pachyderm <https://www.pachyderm.io/> API.

NOTES

  1. Currently implements only the PFS interface.
  2. Supports Pachyderm versions 1.4 and up

Installing

$ pip install pypachy

Instructions

All of the PFS functions used in pachctl are supported (almost) as-is. There are some helper functions that help make things more pythonic: * commit which is a context manager wrapper for start_commit and finish_commit * get_files which supports getting the data from multiple files

Naming commits

All functions that accept a commit argument will accept a tuple of (repo, branch) or (repo, commit_id), a string like repo/branch or repo/commit_id and a Commit object.

e.g:

>>> client.list_file(('my_repo', 'branch'), '/')    # tuple
>>> client.list_file('my_repo/commit_id', '/')      # string
>>> c = client.list_commit('my_repo')[0]            # get some commit
>>> client.list_file(c, '/')                        # and use it directly

Basic usage example

>>> import pypachy

>>> client = pypachy.PfsClient()
>>> client.create_repo('test')
>>> with client.commit('test', 'master') as c:
...:     client.put_file_bytes(c, '/dir_a/data', b'DATA')
...:     client.put_file_url(c, '/dir_b/icon.png', 'http://www.pearl-guide.com/forum/images/smilies/biggrin.png')
...:
>>> client.get_files('test/master', '/', recursive=True)
{'/dir_a/data': b'DATA',
 '/dir_b/icon.png': b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10\x00\x00\x00\x10\x08...'}

As of version 0.1.4, there is also limited support for PPS:

>>> pps_client = pypachy.PpsClient()
>>> pps_client.list_pipeline()
...

TODO

  • Test, test, test!
  • Add support for ObjectAPI

Changelog

0.1.5 - Bug fixes

0.1.4 - Added: Alpha support for PPS - Changed: Adapted for Pachyderm 1.5.2

0.1.3 - Fixed: inspect_commit was broken - Added: provenances_for_repo function gives all the provenances for the commits in the repo

0.1.2 - Added: PfsClient default parameters now use the environment variables for pachd - Added: put_file_bytes can accept an iterator - Changed: commit now tries to close the commit if an error occurred inside the context - Added: More examples and a changelog to README

Project details


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