Import aesara fails with numpy 2.0.dev

[Oscar Benjamin]

Description of your problem or feature request

I found this while investigating sympy/sympy#26094.

With the numpy nightly builds for upcoming numpy 2.0 Aesara fails to import. Looks like it might be an easy fix though from the suggestion in the error message.

The nightly build can be installed with:

pip install -i https://pypi.anaconda.org/scientific-python-nightly-wheels/simple numpy

Demonstration:

>>> import aesara
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/oscar/.pyenv/versions/sympy-3.11.git/lib/python3.11/site-packages/aesara/__init__.py", line 120, in <module>
    from aesara import scalar, tensor
  File "/home/oscar/.pyenv/versions/sympy-3.11.git/lib/python3.11/site-packages/aesara/tensor/__init__.py", line 105, in <module>
    from aesara.tensor import sharedvar  # noqa
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/oscar/.pyenv/versions/sympy-3.11.git/lib/python3.11/site-packages/aesara/tensor/sharedvar.py", line 8, in <module>
    from aesara.tensor.type import TensorType
  File "/home/oscar/.pyenv/versions/sympy-3.11.git/lib/python3.11/site-packages/aesara/tensor/type.py", line 787, in <module>
    cscalar = TensorType("complex64", ())
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/oscar/.pyenv/versions/sympy-3.11.git/lib/python3.11/site-packages/aesara/tensor/type.py", line 104, in __init__
    if np.obj2sctype(dtype) is None:
       ^^^^^^^^^^^^^
  File "/home/oscar/.pyenv/versions/sympy-3.11.git/lib/python3.11/site-packages/numpy/__init__.py", line 396, in __getattr__
    raise AttributeError(
AttributeError: `np.obj2sctype` was removed in the NumPy 2.0 release. Use `np.dtype(obj).type` instead.

[Brandon T. Willard]

Thanks for the heads-up!