register_fixture seem kind of useless

[Glinte]

I don't see a lot of value in getting the factory class as a fixture, why not just use the class directly?

Yes the fixture just returns the class, it doesn't even instantiate it for you: #751

Also, because register_fixture does some frame inspection stuff and inject into globals directly, the fixtures show up as fixtures defined from polyfactory.pytest_plugin rather than where you used register_fixture, and if you define the factories outside of conftest.py you have to know to (undocumented) blindly import the fixture into conftest.py despite static type checkers telling you the symbol doesn't exist, or to import the class and run register_fixture inside conftest.py (again undocumented pattern).

[adhtruong]

I don't personally use it myself and do explicitly for this reason. This has been kept for backwards compatibility but could remove as part of a future major release