Numpy 1.24 compatibility

[hsinfan1996]

Numpy 1.24.0 removed np.int (need to use python type int instead), which ISiTGR is stilling using.

[hsinfan1996]

FAST-PT is also affected.

[hsinfan1996]

np.bool in pyccl/core.py will make two tests fail.

[nikfilippas]

The warning has been there for a while. Isn't this issue more relevant to the individual libraries though? There's not much we can do to fix it, right?

[hsinfan1996]

The warning has been there for a while. Isn't this issue more relevant to the individual libraries though? There's not much we can do to fix it, right?

The deprecation expired in Numpy 1.24.0. For CCL, only pyccl/core.py are affected. The two libraries are required for the tests to pass, so it is not a critical issue to users. In case they are not being updated, we can monkey patch it in pyccl/__init__.py with

from packaging.version import parse
import numpy as np
if bool(parse(np.__version__)>=parse('1.24')):
    # for isitgr and fast-pt
    np.int = int
    # the line below is for CCL
    np.bool = bool

[nikfilippas]

Okay, I see. I'm happy to review a relevant PR.
As for CCL, I think we can just replace np.integer, np.floating and np.bool in core.py with the built-ins, so we can get rid of the patch as soon as the external libraries are updated.