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bpo-43926: Cleaner metadata with PEP 566 JSON support. (GH-25565)

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* bpo-43926: Cleaner metadata with PEP 566 JSON support.

* Add blurb

* Add versionchanged and versionadded declarations for changes to metadata.

* Use descriptor for PEP 566
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Jason R. Coombs 2021-05-02 17:03:40 -04:00 • committed by GitHub
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commit 37e0c7850d
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12 changed files with 254 additions and 26 deletions
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Doc/library/importlib.metadata.rst
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@ -170,6 +170,19 @@ the values are returned unparsed from the distribution metadata::
>>> wheel_metadata['Requires-Python'] # doctest: +SKIP
'>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*'
``PackageMetadata`` also presents a ``json`` attribute that returns
all the metadata in a JSON-compatible form per :PEP:`566`::
>>> wheel_metadata.json['requires_python']
'>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*'
.. versionchanged:: 3.10
The ``Description`` is now included in the metadata when presented
through the payload. Line continuation characters have been removed.
.. versionadded:: 3.10
The ``json`` attribute was added.
.. _version: