The main benefits of this proposal: - the order of fields (those with defaults, those without) is irrelevant - don't need to pedantically add default = None for Optional values
On Sun, 2021-01-24 at 19:46 +0000, Paul Bryan via Python-ideas wrote: > I've created a helper class in my own library that enhances the > existing dataclass: > > a) __init__ accepts keyword-only arguments, > b) Optional[...] attribute without a specified default value would > default to None in __init__. > > I think this could be useful in stdlib. I'm thinking a dataclass > decorator parameter like "init_kwonly" (default=False to provide > backward compatibility) that if True would implement this behavior. > > Thoughts? > > _______________________________________________ > Python-ideas mailing list -- python-ideas@python.org > To unsubscribe send an email to python-ideas-le...@python.org > https://mail.python.org/mailman3/lists/python-ideas.python.org/ > Message archived at > https://mail.python.org/archives/list/python-ideas@python.org/message/2NLPDOV2XJBQU5LX3SA3XEQ6CTOQEZA7/ > Code of Conduct: http://python.org/psf/codeofconduct/
_______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/T2BBB4LA3LLPRZRF4TRR6YBROTX7CGBD/ Code of Conduct: http://python.org/psf/codeofconduct/
