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Developer Release Procedure

To release a new version of the widgets on PyPI and npm, first checkout master and cd into the repo root.

Publish the npm modules

# clean out all dirty files
git checkout master
git pull origin master
git reset --hard origin/master
git clean -fdx
npm install
npm run publish

Lerna will prompt you for version numbers for each of the changed npm packages. Lerna will then change the versions appropriately (including the interdependency versions), commit, tag, and publish the new packages to npm.

widgetsnbextension

Go into the widgetsnbextension directory. Change widgetsnbextension/_version.py to reflect the new version number.

python setup.py sdist
python setup.py bdist_wheel --universal
twine upload dist/*

ipywidgets

Change ipywidgets/_version.py to reflect the new version number, and if necessary, a new __html_manager_version__. Change the install_requires parameter in setup.py reference the new widgetsnbextension version.

python setup.py sdist
python setup.py bdist_wheel --universal
twine upload dist/*

Push changes back

commit and tag (ipywidgets) release

Release Notes

Here is an example of the release statistics for ipywidgets 7.0.

It has been 157 days since the last release. In this release, we closed 127 issues and 216 pull requests with 1069 commits, of which 851 are not merges.

Here are some commands used to generate some of the statistics above.

# merges since in 6.0.0, but not 7.0.0, which is a rough list of merged PRs
git log --merges 6.0.0...master --pretty=oneline

# To really make sure we get all PRs, we could write a program that
# pulled all of the PRs, examined a commit in each one, and did
# `git tag --contains <commit number>` to see if that PR commit is included
# in a previous release.

# issues closed with no milestone in the time period
# is:issue is:closed closed:"2016-07-14 .. 2017-02-28"

# date of 6.0.0 tag
git show -s --format=%cd --date=short 6.0.0^{commit}

# Non-merge commits in 7.0.0 not in any 6.x release
git log --pretty=oneline --no-merges ^6.0.0 master | wc -l

# Authors of non-merge commits
git shortlog -s  6.0.0..master --no-merges | cut -c8- | sort -f

# New committers: authors unique in the 6.0.0..7.0.0 logs, but not in the 6.0.0 log
comm -23 <(git shortlog -s -n 6.0.0..master --no-merges | cut -c8- | sort) <(git shortlog -s -n 6.0.0 --no-merges | cut -c8- | sort) | sort -f