Uspto-opendata-python

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- Release on PyPI using "twine"

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- Release on PyPI using "flit"

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- Update documentation

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- When saving documents, optionally use the application identifier as filename
- Make "--type" argument optional by guessing document type from number
- Improve command line option juggling and documentation
- Properly retry failing tasks with Celery
- Honor "--use-application-id" also when printing results to STDOUT in bulk mode
- Fix Celery task reject behavior
- Don't use number from "--numberfile" when prefixed with ""
- Improve exception handling and error response for bulk acquisition mode
- Improve Celery bootstrapping again
- Add API search mode, refactoring and cleanups, update API and command line documentation

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- Improve Celery bootstrapping
- Add "--poll" option to wait for results when running in "--background" mode
- Improve command line argument handling
- Rename command line option "--poll" to "--wait"
- Introduce bulk mode based on task queue: ``uspto-{pbd,peds} bulk {get,save} ...``

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- Implement access to the USPTO Patent Examination Data System (PEDS), including command line program ``uspto-peds``
- Generalize Celery-based background downloads between PBD and PEDS