164 lines
5.4 KiB
ReStructuredText
164 lines
5.4 KiB
ReStructuredText
===================================
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OpenRefine Python Client Library
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===================================
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The OpenRefine Python Client Library provides an interface to
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communicating with an `OpenRefine <http://openrefine.org/>`_ server.
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Download
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========
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One-file-executables:
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* Linux: `openrefine-client_0-3-2_linux-64bit <https://github.com/opencultureconsulting/openrefine-client/releases/download/v0.3.2/openrefine-client_0-3-2_linux-64bit>`_ (4,9 MB)
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* Windows: `openrefine-client_0-3-2_windows <https://github.com/opencultureconsulting/openrefine-client/releases/download/v0.3.2/openrefine-client_0-3-2_windows>`_ (5,1 MB)
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For native Python installation on Windows, Mac or Linux see `Installation <#installation>`_ below.
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Usage
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=====
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Command line interface:
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- list all projects: ``python refine.py --list``
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- create project from file: ``python refine.py --create [FILE]``
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- apply `rules from json file <http://kb.refinepro.com/2012/06/google-refine-json-and-my-notepad-or.html>`_: ``python refine.py --apply [FILE.json] [PROJECTID/PROJECTNAME]``
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- export project to file: ``python refine.py --export [PROJECTID/PROJECTNAME] --output=FILE.tsv``
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- show project metadata: ``python refine.py --info [PROJECTID/PROJECTNAME]``
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- delete project: ``python refine.py --delete [PROJECTID/PROJECTNAME]``
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- check ``python refine.py --help`` for further options...
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If you are familiar with python you may try all functions interactively (``python -i refine.py``) or use this library in your own python scripts. Some Examples:
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* show version of OpenRefine server: ``refine.RefineServer().get_version()``
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* show total rows of project 2151545447855: ``refine.RefineProject(refine.RefineServer(),'2151545447855').do_json('get-rows')['total']``
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* compute clusters of project 2151545447855 and column key: ``refine.RefineProject(refine.RefineServer(),'2151545447855').compute_clusters('key')``
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Features
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=============
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Currently, the following API is supported:
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- project creation/import, deletion, export
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- facet computation
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- text
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- text filter
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- numeric
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- blank
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- starred & flagged
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- ... extensible class
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- 'engine': managing multiple facets and their computation results
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- sorting & reordering
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- clustering
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- transforms
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- transposes
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- single and mass edits
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- annotation (star/flag)
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- column
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- move
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- add
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- split
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- rename
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- reorder
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- remove
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- reconciliation
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- reconciliation judgment facet
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- guessing column type
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- querying reconciliation services preferences
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- perform reconciliation
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Configuration
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=============
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By default the OpenRefine server URL is http://127.0.0.1:3333
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The environment variables ``OPENREFINE_HOST`` and ``OPENREFINE_PORT``
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enable overriding the host & port.
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In order to run all tests, a live Refine server is needed. No existing projects
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are affected.
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Installation
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============
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(Someone with more familiarity with python's byzantine collection of installation
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frameworks is very welcome to improve/"best practice" all this.)
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#. Install dependencies, which currently is ``urllib2_file``:
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``sudo pip install -r requirements.txt``
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(If you don't have ``pip`` visit `pip-installer.org <http://www.pip-installer.org/en/latest/installing.html#install-or-upgrade-pip>`_)
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#. Ensure you have a Refine server running somewhere and, if necessary, set
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the environment vars as above.
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#. Run tests, build, and install:
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``python setup.py test # to do a subset, e.g., --test-suite tests.test_facet``
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``python setup.py build``
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``python setup.py install``
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There is a Makefile that will do this too, and more.
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TODO
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====
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The API so far has been filled out from building a test suite to carry out the
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actions in `David Huynh's Refine tutorial <http://davidhuynh.net/spaces/nicar2011/tutorial.pdf>`_ which while certainly showing off a
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wide range of Refine features doesn't cover the entire suite. Notable exceptions
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currently include:
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- reconciliation support is useful but not complete
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- undo/redo
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- Freebase
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- join columns
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- columns from URL
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Contribute
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============
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Pull requests with passing tests welcome! Source is at https://github.com/PaulMakepeace/refine-client-py
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Useful Tools
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------------
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One aspect of development is watching HTTP transactions. To that end, I found
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`Fiddler <http://www.fiddler2.com/>`_ on Windows and `HTTPScoop
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<http://www.tuffcode.com/>`_ invaluable. The latter won't URL-decode nor nicely
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format JSON but the `Online JavaScript Beautifier <http://jsbeautifier.org/>`_
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will.
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Executables may be built with `pyinstaller <http://www.pyinstaller.org>`_.
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History
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=======
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OpenRefine used to be called Google Refine, and this library used to be called
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the Google Refine Python Client Library.
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Credits
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=======
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Paul Makepeace, author, <paulm@paulm.com>
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David Huynh, `initial cut <http://markmail.org/message/jsxzlcu3gn6drtb7>`_
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`Artfinder <http://www.artfinder.com/>`_, inspiration
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Some data used in the test suite has been used from publicly available sources,
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- louisiana-elected-officials.csv: from
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http://www.sos.louisiana.gov/tabid/136/Default.aspx
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- us_economic_assistance.csv: `"The Green Book" <http://www.data.gov/raw/1554>`_
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- eli-lilly.csv: `ProPublica's "Docs for Dollars" <http://projects.propublica.org/docdollars/>`_ leading to a `Lilly Faculty PDF <http://www.lillyfacultyregistry.com/documents/EliLillyFacultyRegistryQ22010.pdf>`_ processed by `David Huynh's ScraperWiki script <http://scraperwiki.com/scrapers/eli-lilly-dollars-for-docs-scraper/edit/>`_
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