Fixes #3290

import pyomo with NumPy 2.0

Summary/Motivation:

NumPy 2.0 has removed np.float_ and np.complex_

Error demonstration (with NumPy 2.0):

import numpy as np
import pyomo
AttributeError: `np.float_` was removed in the NumPy 2.0 release. Use `np.float64` instead.. Did you mean: 'float16'?

Changes proposed in this PR:

Here I set a version check before including them

Per the release notes: https://numpy.org/devdocs/release/2.0.0-notes.html

• Alias np.float_ has been removed. Use np.float64 instead.
• Alias np.complex_ has been removed. Use np.complex128 instead.

Now

import numpy as np
import pyomo

Does not raise any errors

Legal Acknowledgement

By contributing to this software project, I have read the contribution guide and agree to the following terms and conditions for my contribution:

1. I agree my contributions are submitted under the BSD license.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.