ConfigSpace error with Python 3.12 - TypeError: Expected float, got numpy.float64

[alechouse97]

Hi, I'm running into an error when running SMT in a python 3.12 environment, specifically within the design_space module. The following is a test script I'm using:

import numpy as np
from smt.surrogate_models import KRG

x = np.linspace(0, 10, 20).reshape(-1, 1)
y = x * np.sin(x)

model = KRG()
model.set_training_values(x, y)
model.train()

And the following is the resulting console output:

___________________________________________________________________________
   
                                  Kriging
___________________________________________________________________________
   
 Problem size
   
      # training points.        : 20
   
___________________________________________________________________________
   
 Training
   
   Training ...
Traceback (most recent call last):
  File "/home/alec.house/local/CFDRC_tools/sage/scratch.py", line 9, in <module>
    model.train()
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/surrogate_models/surrogate_model.py", line 275, in train
    self._train()
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/surrogate_models/krg_based.py", line 529, in _train
    self._new_train()
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/surrogate_models/krg_based.py", line 373, in _new_train
    if is_acting is None and not self.is_continuous:
                                 ^^^^^^^^^^^^^^^^^^
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/surrogate_models/krg_based.py", line 260, in is_continuous
    return self.design_space.is_all_cont
           ^^^^^^^^^^^^^^^^^
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/surrogate_models/krg_based.py", line 247, in design_space
    self.options["design_space"] = ensure_design_space(
                                   ^^^^^^^^^^^^^^^^^^^^
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/utils/design_space.py", line 56, in ensure_design_space
    return DesignSpace([[np.min(xt) - 0.99, np.max(xt) + 1e-4]] * xt.shape[1])
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/alec.house/local/mambaforge/envs/py312/lib/python3.12/site-packages/smt/utils/design_space.py", line 746, in __init__
    cs_vars[name] = UniformFloatHyperparameter(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "ConfigSpace/hyperparameters/uniform_float.pyx", line 62, in ConfigSpace.hyperparameters.uniform_float.UniformFloatHyperparameter.__init__
  File "ConfigSpace/hyperparameters/uniform_float.pyx", line 124, in ConfigSpace.hyperparameters.uniform_float.UniformFloatHyperparameter.check_default
TypeError: Expected float, got numpy.float64

For reference, here are the packages currently installed in my environment, which do work with python 3.11.

Package                       Version
----------------------------- -----------
alabaster                     0.7.16
astroid                       3.2.2
attrs                         23.2.0
babel                         2.15.0
black                         24.3.0
blinker                       1.8.2
build                         1.2.1
certifi                       2024.6.2
charset-normalizer            3.3.2
click                         8.1.7
configspace                   0.7.1
contourpy                     1.2.1
coverage                      7.5.4
cycler                        0.12.1
dill                          0.3.8
docutils                      0.21.2
filelock                      3.15.4
flask                         3.0.3
fonttools                     4.53.0
fsspec                        2024.6.1
h5py                          3.11.0
idna                          3.7
imagesize                     1.4.1
iniconfig                     2.0.0
isort                         5.13.2
itsdangerous                  2.2.0
jenn                          1.0.6
jinja2                        3.1.4
joblib                        1.4.2
jsonpointer                   3.0.0
jsonschema                    4.22.0
jsonschema-specifications     2023.12.1
kaleido                       0.2.1
kiwisolver                    1.4.5
llvmlite                      0.42.0
markupsafe                    2.1.5
matplotlib                    3.9.0
mccabe                        0.7.0
more-itertools                10.3.0
mpmath                        1.3.0
mypy                          1.9.0
mypy-extensions               1.0.0
networkx                      3.3
numba                         0.59.1
numpy                         1.26.4
orjson                        3.10.5
packaging                     24.1
pandas                        2.2.2
pathspec                      0.12.1
pillow                        10.4.0
pip                           24.0
platformdirs                  4.2.2
plotly                        5.22.0
pluggy                        1.5.0
pooch                         1.8.2
pydoe3                        1.0.3
pygments                      2.18.0
pylint                        3.2.5
pyparsing                     3.1.2
pyproject-hooks               1.1.0
pytest                        8.2.2
pytest-cov                    5.0.0
python-dateutil               2.9.0.post0
pytz                          2024.1
pyvista                       0.43.10
referencing                   0.35.1
requests                      2.32.3
rpds-py                       0.18.1
ruamel-yaml                   0.18.6
ruamel-yaml-clib              0.2.8
ruff                          0.5.0
scikit-learn                  1.5.0
scipy                         1.14.0
scooby                        0.10.0
setuptools                    70.1.1
six                           1.16.0
smt                           2.6.2
snowballstemmer               2.2.0
sphinx                        7.3.7
sphinx-pyreverse              0.0.18
sphinxcontrib-applehelp       1.0.8
sphinxcontrib-devhelp         1.0.6
sphinxcontrib-htmlhelp        2.0.5
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-qthelp          1.0.7
sphinxcontrib-serializinghtml 1.1.10
sympy                         1.12.1
tenacity                      8.4.2
threadpoolctl                 3.5.0
tomlkit                       0.12.5
torch                         2.3.1+cpu
tqdm                          4.66.4
typing-extensions             4.12.2
tzdata                        2024.1
urllib3                       2.2.2
uv                            0.2.18
vtk                           9.3.1
werkzeug                      3.0.3
wheel                         0.43.0

Anything glaringly obvious? Thanks!

[relf]

Yep, ConfigSpace is not ready for Python 3.12. See #575 . The workaround for now is to either uninstall ConfigSpace (but you loose hierachical variables handling feature) or use Python 3.11.

[alechouse97]

That got it.

Thank you for your help and the quick replies today!