Numpy breaking value from pyomo.environ

[systechusaIN1522]

Summary

Created fresh virtual environment in a cloned repo (known to be in a working state). In the code I have a statement like from pyomo.environ import value - but running the file throws error even before value is called.

Steps to reproduce the issue

Not sure, but I have a setup like below

$ # assuming we are in some safe directory and having access to glpsol
$ echo "from pyomo.environ import value" > test.py
$ python3 -m venv v
$ source v\bin\activate
$ pip install wheel
$ pip install pyomo pandas openpyxl
$ python test.py

Error Message

stacktrace:

(v) abc@computer:~/code/projectName$ python optimiser.py 
Traceback (most recent call last):
  File "/home/abc/code/projectName/optimiser.py", line 11, in <module>
    from pyomo.environ import value
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/__init__.py", line 12, in <module>
    from . import common
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/__init__.py", line 14, in <module>
    from . import log
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/log.py", line 30, in <module>
    from pyomo.common.fileutils import PYOMO_ROOT_DIR
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/fileutils.py", line 45, in <module>
    from .dependencies import ctypes
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/dependencies.py", line 1049, in <module>
    numpy, numpy_available = attempt_import('numpy', callback=_finalize_numpy)
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/dependencies.py", line 738, in attempt_import
    return _perform_import(
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/dependencies.py", line 768, in _perform_import
    callback(module, True)
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/pyomo/common/dependencies.py", line 1002, in _finalize_numpy
    _floats = [np.float_, np.float16, np.float32, np.float64]
  File "/home/abc/code/projectName/v/lib/python3.10/site-packages/numpy/__init__.py", line 397, in __getattr__
    raise AttributeError(
AttributeError: `np.float_` was removed in the NumPy 2.0 release. Use `np.float64` instead.. Did you mean: 'float16'?

Information on your system

Pyomo version: 6.7.3
Python version: 3.10.12
Operating system: Linux computer 5.10.102.1-microsoft-standard-WSL2 #1 SMP Wed Mar 2 00:30:59 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
How Pyomo was installed (PyPI, conda, source): pip
Solver (if applicable): glpsol

[jsiirola]

Duplicate of #3290; resolved by #3292

[systechusaIN1522]

Thanks @jsiirola I searched for couple of terms but didn't find anything relevant.

What is the suggested quick fix or recommended workaround until we get review from Robbybp, blnicho, and michaelbynum

[systechusaIN1522]

As suggested by the error message, I tried np.float_ = np.float16 in the code - that threw complex_ error, so I currently have

np.int_ = np.int16
np.float_ = np.float32
np.complex_ = np.complex64

I am using MILP with GLPK - so I added int even though it wasn't complained for - please let me know if this will adversely affect the results.

[mrmundt]

@systechusaIN1522 - You can clone main and the issue is resolved there. We are also planning on release a new pinned version of Pyomo within the next two weeks, so if you prefer to work from official releases, that will soon be an option.