[docs] [issue36896] clarify in types.rst that FunctionTypes & co constructors don't have stable signature
Terry J. Reedy
report at bugs.python.org
Fri May 31 12:16:39 EDT 2019
Terry J. Reedy <tjreedy at udel.edu> added the comment:
In msg342227 Pablo Galindo Salgado said "I am +1 to such a sentence, but I think this is a decision that more core devs should agree on."
> "These types are not supposed to be instantiated outside of CPython internals"
At least Petr Vidtorin and I disagree with this part. As Petr wrote on pydev thread "Expected stability of PyCode_New() and types.CodeType() signatures", there are multiple tools that instantiate code objects, in particular Cython, which is far from being a rogue project. Python is a 'consenting adults' languages, and we generally do not officially tell people what they are 'supposed' to do or not do.
nosy: +petr.viktorin, terry.reedy
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