Unable to import RBF, had to use this instead "from UQpy.utilities.kernels.euclidean_kernels import RBF"

[pmzmro]

Trying to follow this example: Gaussian Process with Noise and Constraints from this (line 31)
from UQpy.surrogates.gaussian_process.kernels.RBF import RBF
I get the error

ModuleNotFoundError: No module named 'UQpy.surrogates.gaussian_process.kernels'

If instead I use
from UQpy.utilities.kernels.euclidean_kernels import RBF
it seems to work fine.

Is this expected behaviour, does the example need updating or have I missed something else?

I created a fresh Conda env "gpexamples" for which conda list returns:

# packages in environment at /opt/anaconda3/envs/gpexamples:
#
# Name                    Version                   Build  Channel
appnope                   0.1.4              pyhd8ed1ab_1    conda-forge
asttokens                 3.0.0              pyhd8ed1ab_1    conda-forge
beartype                  0.9.1              pyhd8ed1ab_0    conda-forge
brotli                    1.1.0                hd74edd7_2    conda-forge
brotli-bin                1.1.0                hd74edd7_2    conda-forge
bzip2                     1.0.8                h99b78c6_7    conda-forge
ca-certificates           2025.1.31            hf0a4a13_0    conda-forge
comm                      0.2.2              pyhd8ed1ab_1    conda-forge
contourpy                 1.3.1           py313h0ebd0e5_0    conda-forge
cpython                   3.13.2          py313hd8ed1ab_101    conda-forge
cycler                    0.12.1             pyhd8ed1ab_1    conda-forge
debugpy                   1.8.13          py313h928ef07_0    conda-forge
decorator                 5.2.1              pyhd8ed1ab_0    conda-forge
exceptiongroup            1.2.2              pyhd8ed1ab_1    conda-forge
executing                 2.1.0              pyhd8ed1ab_1    conda-forge
filelock                  3.18.0             pyhd8ed1ab_0    conda-forge
fire                      0.7.0              pyhd8ed1ab_0    conda-forge
fonttools                 4.56.0          py313ha9b7d5b_0    conda-forge
freetype                  2.13.3               h1d14073_0    conda-forge
fsspec                    2025.3.2           pyhd8ed1ab_0    conda-forge
gmp                       6.3.0                h7bae524_2    conda-forge
gmpy2                     2.1.5           py313h2cdc120_3    conda-forge
importlib-metadata        8.6.1              pyha770c72_0    conda-forge
ipykernel                 6.29.5             pyh57ce528_0    conda-forge
ipython                   9.0.2              pyhfb0248b_0    conda-forge
ipython_pygments_lexers   1.1.1              pyhd8ed1ab_0    conda-forge
jedi                      0.19.2             pyhd8ed1ab_1    conda-forge
jinja2                    3.1.6              pyhd8ed1ab_0    conda-forge
joblib                    1.4.2              pyhd8ed1ab_1    conda-forge
jupyter_client            8.6.3              pyhd8ed1ab_1    conda-forge
jupyter_core              5.7.2              pyh31011fe_1    conda-forge
kiwisolver                1.4.7           py313hf9c7212_0    conda-forge
krb5                      1.21.3               h237132a_0    conda-forge
lcms2                     2.17                 h7eeda09_0    conda-forge
lerc                      4.0.0                h9a09cb3_0    conda-forge
libabseil                 20250127.1      cxx17_h07bc746_0    conda-forge
libblas                   3.9.0           31_h10e41b3_openblas    conda-forge
libbrotlicommon           1.1.0                hd74edd7_2    conda-forge
libbrotlidec              1.1.0                hd74edd7_2    conda-forge
libbrotlienc              1.1.0                hd74edd7_2    conda-forge
libcblas                  3.9.0           31_hb3479ef_openblas    conda-forge
libcxx                    20.1.2               ha82da77_0    conda-forge
libdeflate                1.23                 hec38601_0    conda-forge
libedit                   3.1.20250104    pl5321hafb1f1b_0    conda-forge
libexpat                  2.7.0                h286801f_0    conda-forge
libffi                    3.4.6                h1da3d7d_1    conda-forge
libgfortran               5.0.0           14_2_0_h6c33f7e_2    conda-forge
libgfortran5              14.2.0               h6c33f7e_2    conda-forge
libjpeg-turbo             3.0.0                hb547adb_1    conda-forge
liblapack                 3.9.0           31_hc9a63f6_openblas    conda-forge
liblzma                   5.6.4                h39f12f2_0    conda-forge
libmpdec                  4.0.0                h99b78c6_0    conda-forge
libopenblas               0.3.29          openmp_hf332438_0    conda-forge
libpng                    1.6.47               h3783ad8_0    conda-forge
libprotobuf               5.29.3               hccd9074_0    conda-forge
libsodium                 1.0.20               h99b78c6_0    conda-forge
libsqlite                 3.49.1               h3f77e49_2    conda-forge
libtiff                   4.7.0                h551f018_3    conda-forge
libtorch                  2.6.0           cpu_generic_hb48c3f1_3    conda-forge
libuv                     1.50.0               h5505292_0    conda-forge
libwebp-base              1.5.0                h2471fea_0    conda-forge
libxcb                    1.17.0               hdb1d25a_0    conda-forge
libzlib                   1.3.1                h8359307_2    conda-forge
llvm-openmp               20.1.2               hdb05f8b_0    conda-forge
markupsafe                3.0.2           py313ha9b7d5b_1    conda-forge
matplotlib                3.10.1          py313h39782a4_0    conda-forge
matplotlib-base           3.10.1          py313haaf02c0_0    conda-forge
matplotlib-inline         0.1.7              pyhd8ed1ab_1    conda-forge
mpc                       1.3.1                h8f1351a_1    conda-forge
mpfr                      4.2.1                hb693164_3    conda-forge
mpmath                    1.3.0              pyhd8ed1ab_1    conda-forge
munkres                   1.1.4              pyh9f0ad1d_0    conda-forge
ncurses                   6.5                  h5e97a16_3    conda-forge
nest-asyncio              1.6.0              pyhd8ed1ab_1    conda-forge
networkx                  3.4.2              pyh267e887_2    conda-forge
nomkl                     1.0                  h5ca1d4c_0    conda-forge
numpy                     2.2.4           py313h41a2e72_0    conda-forge
openjpeg                  2.5.3                h8a3d83b_0    conda-forge
openssl                   3.4.1                h81ee809_0    conda-forge
optree                    0.14.1          py313h0ebd0e5_1    conda-forge
packaging                 24.2               pyhd8ed1ab_2    conda-forge
parso                     0.8.4              pyhd8ed1ab_1    conda-forge
pexpect                   4.9.0              pyhd8ed1ab_1    conda-forge
pickleshare               0.7.5           pyhd8ed1ab_1004    conda-forge
pillow                    11.1.0          py313hb37fac4_0    conda-forge
pip                       25.0.1             pyh145f28c_0    conda-forge
platformdirs              4.3.7              pyh29332c3_0    conda-forge
prompt-toolkit            3.0.50             pyha770c72_0    conda-forge
psutil                    7.0.0           py313h90d716c_0    conda-forge
pthread-stubs             0.4               hd74edd7_1002    conda-forge
ptyprocess                0.7.0              pyhd8ed1ab_1    conda-forge
pure_eval                 0.2.3              pyhd8ed1ab_1    conda-forge
pybind11                  2.13.6             pyh1ec8472_2    conda-forge
pybind11-global           2.13.6             pyh415d2e4_2    conda-forge
pygments                  2.19.1             pyhd8ed1ab_0    conda-forge
pyparsing                 3.2.3              pyhd8ed1ab_1    conda-forge
python                    3.13.2          h81fe080_101_cp313    conda-forge
python-dateutil           2.9.0.post0        pyhff2d567_1    conda-forge
python_abi                3.13                    6_cp313    conda-forge
pytorch                   2.6.0           cpu_generic_py313_h386d6f0_3    conda-forge
pyzmq                     26.3.0          py313he6960b1_0    conda-forge
qhull                     2020.2               h420ef59_5    conda-forge
readline                  8.2                  h1d1bf99_2    conda-forge
scikit-learn              1.6.1           py313hecba28c_0    conda-forge
scipy                     1.15.2          py313h9a24e0a_0    conda-forge
setuptools                75.8.2             pyhff2d567_0    conda-forge
six                       1.17.0             pyhd8ed1ab_0    conda-forge
sleef                     3.8                  h8391f65_0    conda-forge
stack_data                0.6.3              pyhd8ed1ab_1    conda-forge
sympy                     1.13.3           pyh2585a3b_105    conda-forge
termcolor                 3.0.0              pyhd8ed1ab_0    conda-forge
threadpoolctl             3.6.0              pyhecae5ae_0    conda-forge
tk                        8.6.13               h5083fa2_1    conda-forge
tornado                   6.4.2           py313h90d716c_0    conda-forge
traitlets                 5.14.3             pyhd8ed1ab_1    conda-forge
typing-extensions         4.13.0               h9fa5a19_1    conda-forge
typing_extensions         4.13.0             pyh29332c3_1    conda-forge
tzdata                    2025b                h78e105d_0    conda-forge
uqpy                      4.2.0              pyhd8ed1ab_0    conda-forge
wcwidth                   0.2.13             pyhd8ed1ab_1    conda-forge
xorg-libxau               1.0.12               h5505292_0    conda-forge
xorg-libxdmcp             1.1.5                hd74edd7_0    conda-forge
zeromq                    4.3.5                hc1bb282_7    conda-forge
zipp                      3.21.0             pyhd8ed1ab_1    conda-forge
zstd                      1.5.7                h6491c7d_2    conda-forge