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The Google Refine Python Client Library provides an interface to communicating with a Google Refine server.

Project description

The Google Refine Python Client Library provides an interface to communicating with a Google Refine server.

Currently, the following API is supported:

  • project creation/import, deletion, export

  • facet computation

    • text

    • text filter

    • numeric

    • blank

    • starred & flagged

    • … extensible class

  • ‘engine’: managing multiple facets and their computation results

  • sorting & reordering

  • clustering

  • transforms

  • transposes

  • single and mass edits

  • annotation (star/flag)

  • column

    • move

    • add

    • split

    • rename

    • reorder

    • remove

  • reconciliation

    • reconciliation judgment facet

    • guessing column type

    • querying reconciliation services preferences

    • perform reconciliation

Configuration

By default the Google Refine server URL is http://127.0.0.1:3333 The environment variables GOOGLE_REFINE_HOST and GOOGLE_REFINE_PORT enable overriding the host & port.

In order to run all tests, a live Refine server is needed. No existing projects are affected.

Installation

(Someone with more familiarity with python’s byzantine collection of installation frameworks is very welcome to improve/”best practice” all this.)

  1. Install dependencies, which currently is urllib2_file:

    sudo pip install -r requirements.txt

  2. Ensure you have a Refine server running somewhere and, if necessary, set the envvars as above.

  3. Run tests, build, and install:

    python setup.py test # to do a subset, e.g., --test-suite tests.test_facet

    python setup.py build

    python setup.py install

There is a Makefile that will do this too, and more.

TODO

The API so far has been filled out from building a test suite to carry out the actions in David Huynh’s Refine tutorial which while certainly showing off a wide range of Refine features doesn’t cover the entire suite. Notable exceptions currently include:

  • reconciliation support is useful but not complete

  • undo/redo

  • Freebase

  • join columns

  • columns from URL

Contribute

Patches welcome! Source is at https://github.com/PaulMakepeace/refine-client-py

Useful Tools

One aspect of development is watching HTTP transactions. To that end, I found Fiddler on Windows and HTTPScoop invaluable. The latter won’t URL-decode nor nicely format JSON but the Online JavaScript Beautifier will.

Credits

Paul Makepeace, author, <paulm@paulm.com>

David Huynh, initial cut

Artfinder, inspiration

Some data used in the test suite has been used from publicly available sources,

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