pywcmp 0.7.1

A Python implementation of the test suite for WMO Core Metadata Profile

pywcmp

WMO Core Metadata Profile Test Suite

pywcmp provides validation and quality assessment capabilities for the WMO WIS Core Metadata Profile (WCMP).

• validation against WCMP 2 (draft), specifically Annex A: Conformance Class Abstract Test Suite, implementing an executable test suite against the ATS
• quality assessement against the WCMP Key Performance Indicators

Installation

pip

Install latest stable version from PyPI.

pip3 install pywcmp

From source

Install latest development version.

python3 -m venv pywcmp
cd pywcmp
. bin/activate
git clone https://github.com/wmo-im/pywcmp.git
cd pywcmp
pip3 install -r requirements.txt
python3 setup.py install

Running

From command line:

# fetch version
pywcmp --version

# sync supporting configuration bundle (schemas, topics, etc.)
pywcmp bundle sync

# abstract test suite

# validate WCMP 2 metadata against abstract test suite (file on disk)
pywcmp ets validate /path/to/file.json

# validate WCMP 2 metadata against abstract test suite (URL)
pywcmp ets validate https://example.org/path/to/file.json

# validate WCMP 2 metadata against abstract test suite (URL), but turn JSON Schema validation off
pywcmp ets validate https://example.org/path/to/file.json --no-fail-on-schema-validation

# adjust debugging messages (CRITICAL, ERROR, WARNING, INFO, DEBUG) to stdout
pywcmp ets validate https://example.org/path/to/file.json --verbosity DEBUG

# write results to logfile
pywcmp ets validate https://example.org/path/to/file.json --verbosity DEBUG --logfile /tmp/foo.txt

# key performance indicators

# all key performance indicators at once
pywcmp kpi validate https://example.org/path/to/file.json --verbosity DEBUG

# all key performance indicators at once, but turn ETS validation off
pywcmp kpi validate https://example.org/path/to/file.json --no-fail-on-ets --verbosity DEBUG

# all key performance indicators at once, in summary
pywcmp kpi validate https://example.org/path/to/file.json --verbosity DEBUG --summary

# selected key performance indicator
pywcmp kpi validate --kpi title /path/to/file.json -v INFO

Using the API

>>> # test a file on disk
>>> import json
>>> from pywcmp.ets import ets
>>> 
>>> with open('/path/to/file.json')) as fh:
...     data = json.load(fh)
>>> # test ETS
>>> ts = ets.WMOCoreMetadataProfileTestSuite2(datal)
>>> ts.run_tests()  # raises ValueError error stack on exception
>>> # test a URL
>>> from urllib2 import urlopen
>>> from StringIO import StringIO
>>> content = StringIO(urlopen('https://....').read())
>>> data = json.loads(content)
>>> ts = ets.WMOCoreMetadataProfileTestSuite2(data)
>>> ts.run_tests()  # raises ValueError error stack on exception
>>> # handle pywcmp.errors.TestSuiteError
>>> # pywcmp.errors.TestSuiteError.errors is a list of errors
>>> try:
...    ts.run_tests()
... except pywcmp.errors.TestSuiteError as err:
...    print('\n'.join(err.errors))
>>> ...
>>> # test KPI
>>> from pywcmp.kpi import WMOCoreMetadataProfileKeyPerformanceIndicators
>>> kpis = WMOCoreMetadataProfileKeyPerformanceIndicators(data)
>>> results = kpis.evaluate()
>>> results['summary']

Development

python3 -m venv pywcmp
cd pywcmp
source bin/activate
git clone https://github.com/wmo-im/pywcmp.git
pip3 install -r requirements.txt
pip3 install -r requirements-dev.txt
python3 setup.py install

Running tests

# via setuptools
python3 setup.py test
# manually
python3 tests/run_tests.py

Releasing

# create release (x.y.z is the release version)
vi pywcmp/__init__.py  # update __version__
git commit -am 'update release version x.y.z'
git push origin master
git tag -a x.y.z -m 'tagging release version x.y.z'
git push --tags

# upload to PyPI
rm -fr build dist *.egg-info
python3 setup.py sdist bdist_wheel --universal
twine upload dist/*

# publish release on GitHub (https://github.com/wmo-im/pywcmp/releases/new)

# bump version back to dev
vi pywcmp/__init__.py  # update __version__
git commit -am 'back to dev'
git push origin master

Code Conventions

PEP8

Issues

Issues are managed at https://github.com/wmo-im/pywcmp/issues

Contact

• Tom Kralidis
• Ján Osuský