Class level scoping is miscompiled #862
Description
Compiling the below:
from typing import Final
class StringParser:
DEFAULT_TOKEN: Final = -1
d: Final = {DEFAULT_TOKEN: 1}
And running it produces:
$ mypyc fud.py
$ python -c 'import fud'
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "fud.py", line 5, in <module>
d: Final = {DEFAULT_TOKEN: 1}
KeyError: 'DEFAULT_TOKEN'
The relevant snippet of C code is:
cpy_r_r39 = CPyStatic_globals;
cpy_r_r40 = CPyStatics[3]; /* 'DEFAULT_TOKEN' */
cpy_r_r41 = CPyDict_GetItem(cpy_r_r39, cpy_r_r40);
This looks like it's looking up the name in the globals dict instead of the class dict.
It doesn't reproduce with a positive integer, float, or string Final.
This is minimized from code in Black, originally found by @ichard26.