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Support class fields: classfield() ? #35

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smarie opened this issue Oct 15, 2019 · 1 comment · May be fixed by #45
Open

Support class fields: classfield() ? #35

smarie opened this issue Oct 15, 2019 · 1 comment · May be fixed by #45
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enhancement New feature or request

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smarie commented Oct 15, 2019

A use case cited in this stackoverflow discussion is to define class fields, so that subclasses are restricted when they override them.

Maybe classfield() could be easily done, similarly to field()
@smarie smarie added the enhancement New feature or request label Oct 15, 2019
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smarie commented Oct 18, 2019 •
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It could be done easily (see branch https://github.com/smarie/python-pyfields/tree/class_fields) but python descriptors do not currently support that __set__ is called for class binding. It is not clear from the doc https://docs.python.org/3/reference/datamodel.html#invoking-descriptors

@smarie smarie linked a pull request Oct 25, 2019 that will close this issue
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Class fields feature smarie/python-pyfields
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