You made a thing, but now you wish it'd go away... Deprecations, a love story.
Project description
regret is a library for deprecating functionality in Python libraries and applications.
Its documentation lives on Read the Docs.
Deprecations
regret can deprecate:
- [x] callables
[x] functions
- [x] classes
[ ] subclassable classes
- [ ] attributes
[ ] of modules
[ ] of classes (& methods)
[ ] of instances
- [ ] descriptors
[ ] classmethod
- [ ] modules
[ ] current module
[ ] other module
- [ ] parameters to callables
[x] previously required parameters that will be removed
[x] optional parameters that are now required
[ ] deprecated values for parameters
[ ] type changes for parameters
[ ] mutual exclusion
- [ ] interfaces
[ ] PEP 544 protocols
[ ] zope.interfaces
[x] inheritability of a class
Design Goals
regret is meant to cover all of the deprecations an author may encounter.
It is intended to:
be versioning system agnostic (i.e. SemVer, CalVer, HipsTer, etc.), because deprecations originate from a version, a point in time, or both.
be documentation system aware (i.e. Sphinx, epydoc, Plaintext, etc.), because deprecations need communication.
be itself fully tested, because deprecations must not break the code they deprecate
support removal date indication, and likely “policies” which automate choosing default removal dates, because deprecations ultimately intend some ultimate change
make “clean code” trivially easy to deprecate, and make complex code possible to deprecate, because the deprecation process is fraught with edge cases and unforeseen necessity.
minimize the amount of deprecation-related code required for authors, since deprecations are boring, and we all want to focus on developing our libraries instead.
In particular, as a lofty first milestone, it is intended to cover all of the specific deprecations required for these jsonschema issues, and with luck, to subsume all the functionality present in twisted.python.deprecate.
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