`__file__` usage + mypyc leads to non-reproducible builds

[mr-c]

Hello again,

The usage of __file__ gets compiled in by mypyc, and in fact it is using the wrong path (the build path, not the post-installed path). Perhaps a more dynamic usage would work better?

Due to Debian's new reproducibility requirement, I will have to turn off mypyc compilation of psygnal until a fix can be found.

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/psygnal.html
https://reproduce.debian.net/amd64/api/v1/builds/259993/artifacts/669198/diffoscope

[Czaki]

Hm. I don't know of any other Pythonic way to determine file location other than __file__ usage. Maybe you should fill out a bug report in mypyc as they should handle it properly during compilation?