pywis-topics

Overview

pywis-topics is a utility to work with the WIS2 Topic Hierarchy

Installation

The easiest way to install pywis-topics is via the Python pip utility:

pip3 install pywis-topics

Requirements

• Python 3
• virtualenv

Dependencies

Dependencies are listed in pyproject.toml. Dependencies are automatically installed during pywis-topics installation.

Installing pywis-topics

# setup virtualenv
python3 -m venv --system-site-packages pywis-topics
cd pywis-topics
source bin/activate

# clone codebase and install
git clone https://github.com/World-Meteorological-Organization/pywis-topics.git
cd pywis-topics
pip3 install .

Running

First check pywis-topics was correctly installed

pywis-topics --version

# sync WTH bundle
pywis-topics bundle sync

Listing and validating topics for subscription

# validate a WIS2 topic hierarchy
pywis-topics topic validate subscription origin/a/wis2/ca-eccc-msc

# validate a WIS2 topic hierarchy in no-strict mode
pywis-topics topic validate subscription --no-strict origin/a/wis2/fake-centre-id/data/core

# list children of a given WIS2 topic hierarchy level
pywis-topics topic list wis2/a

# validate a WIS2 topic hierarchy with wildcards (needs no-strict mode)
pywis-topics topic validate subscription origin/a/wis2/+/data/core --no-strict

Validating topics for publication

# validate a WIS2 topic hierarchy
pywis-topics topic validate publication origin/a/wis2/ca-eccc-msc
pywis-topics topic validate publication origin/a/wis2/ca-eccc-msc/ocean
pywis-topics topic validate publication origin/a/wis2/us-noaa-nws/data/core/weather/surface-based-observations/synop
# validate a WIS2 topic hierarchy in no-strict mode
pywis-topics topic validate publication --no-strict origin/a/wis2/fake-centre-id/data/core

Centre identification validation

# validate a centre-id
pywis-topics centre-id 123

Using the API

Python examples:

from pywis_topics.centre_id import CentreId
from pywis_topics.topics import TopicHierarchy

th = TopicHierarchy()

th.validate('origin/a/wis2/ca-eccc-msc/data/core')
th.list_children('origin/a/wis2')

th.validate('origin/a/wis2/fake-centre-id/data/core', strict=False)

th.validate('origin/a/wis2/+/data/#', strict=False)

cid = CentreId('ca-centre123')
cid.validate()

Development

Running Tests

python3 tests/run_tests.py

Releasing

# create release (x.y.z is the release version)
vi pyproject.toml  # update [project]/version
git commit -am 'update release version x.y.z'
git push origin main
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 -m build
twine upload dist/*

# publish release on GitHub (https://github.com/World-Meteorological-Organization/pywis-topics/releases/new)

# bump version back to dev
vi pyproject.toml  # update [project]/version
git commit -am 'back to dev'
git push origin main

Code Conventions

• PEP8

Bugs and Issues

All bugs, enhancements and issues are managed on GitHub.

Contact

• Tom Kralidis