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how to get 'module' of NewType? #757
Description
is there a way to get module of a NewType?
example:
# -------- packageA/packageB/some_file.py file --------
from typing import NewType, AnyStr
ValidatedEmail = NewType('ValidatedEmail', AnyStr)
...
Extractor
# -------- extract_newtype.py --------
from packageA.packageB.some_file import (
ValidatedEmail
)
# how to access module (or module name) of SomeTypeVarA ?
ValidatedEmail.__module__ # points to 'typing'
# what I'm hoping to get:
get_module_from_typevar(ValidatedEmail) == 'packageA.packageB.some_file'
Activity
gvanrossum commentedon Sep 26, 2020
There is no way, and this is not a desirable use case. (Also, you're using the term "typevar" wrong. :-)
devdoomari3 commentedon Sep 27, 2020
sorry for being sloppy ( the 'typevars' in the above example are the result of copy-pasta...)
my actual use case for
moduleis for "generating Typescript-interface code with python project structure nearly intact"(so a
ValidatedEmailinsidepy_proj/types/user.pywill result in a nominal-type ingenerated_ts_proj/types/user.tsfile)Anyway, for
there's no way, do you mean:pip install -U typing, so this will require newer python version (py3.11+?)in some related discussion from other repo, there's mention of "we can probably backport..." --- is this even possible?
(maybe they're thinking of monkey-patching the
typingmodule before everything else runs?)I'm not actually a python-person, so I'm not very familiar with the python-internals 😭
gvanrossum commentedon Sep 27, 2020