[issue30290] IDLE: add tests for help_about.py

[Terry J. Reedy]

Terry J. Reedy added the comment:


New changeset 054e09147aaa6f61aca6cd40c7bf7ce6dc54a04b by terryjreedy (mlouielu) in branch 'master':
bpo-30290: IDLE: Add more tests for help_about dialog (#1697)
https://github.com/python/cpython/commit/054e09147aaa6f61aca6cd40c7bf7ce6dc54a04b


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<http://bugs.python.org/issue30290>
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