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Description
Hi everybody
I would like to test and evaluate the package to eventually leave Matlab behind for my control systems class. Currently I'm using Windows 10. To make the error reproducible i created a fresh and clean local user and installed miniconda3 and vscode only.
The exact commands in miniconda3 were:
conda update -n base -c defaults conda
conda create --name pichim
conda activate pichim
conda install -c conda-forge control slycot numpy scipy matplotlib ipykernel
I then run vscode with the python and jupyter extensions (packs) with the conda enviroment pichim. The example phaseplots.py is working fine, others using more sophisticated tooling from python-control including slycot do not. E.g. cruise.ipynb is working fine, whereas robustsiso.py do not.
I get the error:
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
File [c:\Users\pichim\miniconda3\envs\pichim\lib\site-packages\control\statesp.py:1547](file:///C:/Users/pichim/miniconda3/envs/pichim/lib/site-packages/control/statesp.py:1547), in _convert_to_statespace(sys, use_prefix_suffix)
1546 try:
-> 1547 from slycot import td04ad
1549 # Change the numerator and denominator arrays so that the transfer
1550 # function matrix has a common denominator.
1551 # matrices are also sized/padded to fit td04ad
File [c:\Users\pichim\miniconda3\envs\pichim\lib\site-packages\slycot\__init__.py:16](file:///C:/Users/pichim/miniconda3/envs/pichim/lib/site-packages/slycot/__init__.py:16)
11 else:
12
13 # import slycot.examples
14
15 # Analysis routines (15/40 wrapped)
---> 16 from .analysis import ab01nd, ab05md, ab05nd, ab07nd, ab08nd, ab08nz
17 from .analysis import ab09ad, ab09ax, ab09bd, ab09md, ab09nd
File [c:\Users\pichim\miniconda3\envs\pichim\lib\site-packages\slycot\analysis.py:22](file:///C:/Users/pichim/miniconda3/envs/pichim/lib/site-packages/slycot/analysis.py:22)
20 import numpy as np
---> 22 from . import _wrapper
23 from .exceptions import raise_if_slycot_error, SlycotParameterError
ImportError: DLL load failed while importing _wrapper: The specified module could not be found.
...
1582 # the squeeze
1583 A, B, C, D = \
1584 sp.signal.tf2ss(squeeze(sys.num), squeeze(sys.den))
TypeError: No support for MIMO without slycot
Output is truncated. View as a [scrollable element](command:cellOutput.enableScrolling?e2d3b551-dd88-41f7-90f8-e6ba35d27e94) or open in a [text editor](command:workbench.action.openLargeOutput?e2d3b551-dd88-41f7-90f8-e6ba35d27e94). Adjust cell output [settings](command:workbench.action.openSettings?%5B%22%40tag%3AnotebookOutputLayout%22%5D)...
Listing the packages from the conda environment with conda list -n pichim produces the following output:
# packages in environment at C:\Users\pichim\miniconda3\envs\pichim:
#
# Name Version Build Channel
asttokens 2.4.0 pyhd8ed1ab_0 conda-forge
backcall 0.2.0 pyh9f0ad1d_0 conda-forge
backports 1.0 pyhd8ed1ab_3 conda-forge
backports.functools_lru_cache 1.6.5 pyhd8ed1ab_0 conda-forge
brotli 1.1.0 hcfcfb64_1 conda-forge
brotli-bin 1.1.0 hcfcfb64_1 conda-forge
ca-certificates 2023.7.22 h56e8100_0 conda-forge
certifi 2023.7.22 pyhd8ed1ab_0 conda-forge
clang 17.0.2 h3dc180e_0 conda-forge
clang-17 17.0.2 default_heb8d277_0 conda-forge
clangxx 17.0.2 default_heb8d277_0 conda-forge
colorama 0.4.6 pyhd8ed1ab_0 conda-forge
comm 0.1.4 pyhd8ed1ab_0 conda-forge
compiler-rt 17.0.2 h91493d7_1 conda-forge
compiler-rt_win-64 17.0.2 h91493d7_1 conda-forge
contourpy 1.1.1 py39h1f6ef14_1 conda-forge
control 0.9.4 pyhd8ed1ab_0 conda-forge
cycler 0.12.1 pyhd8ed1ab_0 conda-forge
debugpy 1.8.0 py39h99910a6_1 conda-forge
decorator 5.1.1 pyhd8ed1ab_0 conda-forge
exceptiongroup 1.1.3 pyhd8ed1ab_0 conda-forge
executing 1.2.0 pyhd8ed1ab_0 conda-forge
fonttools 4.43.1 py39ha55989b_0 conda-forge
freetype 2.12.1 hdaf720e_2 conda-forge
icu 68.2 h0e60522_0 conda-forge
importlib-metadata 6.8.0 pyha770c72_0 conda-forge
importlib-resources 6.1.0 pyhd8ed1ab_0 conda-forge
importlib_metadata 6.8.0 hd8ed1ab_0 conda-forge
importlib_resources 6.1.0 pyhd8ed1ab_0 conda-forge
intel-openmp 2023.2.0 h57928b3_50496 conda-forge
ipykernel 6.25.2 pyh60829e3_0 conda-forge
ipython 8.16.1 pyh5737063_0 conda-forge
jedi 0.19.1 pyhd8ed1ab_0 conda-forge
jpeg 9e hcfcfb64_3 conda-forge
jupyter_client 8.4.0 pyhd8ed1ab_0 conda-forge
jupyter_core 5.4.0 py39hcbf5309_0 conda-forge
kiwisolver 1.4.5 py39h1f6ef14_1 conda-forge
lerc 3.0 hd77b12b_0
libblas 3.9.0 19_win64_mkl conda-forge
libbrotlicommon 1.1.0 hcfcfb64_1 conda-forge
libbrotlidec 1.1.0 hcfcfb64_1 conda-forge
libbrotlienc 1.1.0 hcfcfb64_1 conda-forge
libcblas 3.9.0 19_win64_mkl conda-forge
libclang 11.1.0 default_h5c34c98_1 conda-forge
libdeflate 1.17 h2bbff1b_1
libflang 17.0.2 h63175ca_0 conda-forge
libhwloc 2.9.3 default_haede6df_1009 conda-forge
libiconv 1.17 h8ffe710_0 conda-forge
liblapack 3.9.0 19_win64_mkl conda-forge
libpng 1.6.39 h19919ed_0 conda-forge
libsodium 1.0.18 h8d14728_1 conda-forge
libsqlite 3.43.2 hcfcfb64_0 conda-forge
libtiff 4.5.1 hd77b12b_0
libwebp 1.3.2 hcfcfb64_1 conda-forge
libwebp-base 1.3.2 hcfcfb64_0 conda-forge
libxml2 2.11.5 hc3477c8_1 conda-forge
libzlib 1.2.13 hcfcfb64_5 conda-forge
matplotlib 3.8.0 py39hcbf5309_2 conda-forge
matplotlib-base 3.8.0 py39hf19769e_2 conda-forge
matplotlib-inline 0.1.6 pyhd8ed1ab_0 conda-forge
mkl 2023.2.0 h6a75c08_50496 conda-forge
munkres 1.1.4 pyh9f0ad1d_0 conda-forge
nest-asyncio 1.5.8 pyhd8ed1ab_0 conda-forge
numpy 1.26.0 py39hddb5d58_0 conda-forge
openjpeg 2.5.0 ha2aaf27_2 conda-forge
openssl 1.1.1w hcfcfb64_0 conda-forge
packaging 23.2 pyhd8ed1ab_0 conda-forge
parso 0.8.3 pyhd8ed1ab_0 conda-forge
pickleshare 0.7.5 py_1003 conda-forge
pillow 10.0.1 py39h045eedc_0
pip 23.3 pyhd8ed1ab_0 conda-forge
platformdirs 3.11.0 pyhd8ed1ab_0 conda-forge
prompt-toolkit 3.0.39 pyha770c72_0 conda-forge
prompt_toolkit 3.0.39 hd8ed1ab_0 conda-forge
psutil 5.9.5 py39ha55989b_1 conda-forge
pthreads-win32 2.9.1 hfa6e2cd_3 conda-forge
pure_eval 0.2.2 pyhd8ed1ab_0 conda-forge
pygments 2.16.1 pyhd8ed1ab_0 conda-forge
pyparsing 3.1.1 pyhd8ed1ab_0 conda-forge
pyqt 5.12.3 py39hb0d2dfa_4 conda-forge
pyqt5-sip 4.19.18 pypi_0 pypi
pyqtchart 5.12 pypi_0 pypi
pyqtwebengine 5.12.1 pypi_0 pypi
python 3.9.18 h6244533_0
python-dateutil 2.8.2 pyhd8ed1ab_0 conda-forge
python_abi 3.9 2_cp39 conda-forge
pywin32 306 py39h99910a6_2 conda-forge
pyzmq 25.1.1 py39hea35a22_1 conda-forge
qt 5.12.9 h5909a2a_4 conda-forge
scipy 1.11.3 py39hddb5d58_1 conda-forge
setuptools 68.2.2 pyhd8ed1ab_0 conda-forge
six 1.16.0 pyh6c4a22f_0 conda-forge
slycot 0.5.4 py39h73a3b6d_1 conda-forge
sqlite 3.43.2 hcfcfb64_0 conda-forge
stack_data 0.6.2 pyhd8ed1ab_0 conda-forge
tbb 2021.10.0 h91493d7_1 conda-forge
tk 8.6.13 hcfcfb64_0 conda-forge
tornado 6.3.3 py39ha55989b_1 conda-forge
traitlets 5.11.2 pyhd8ed1ab_0 conda-forge
typing-extensions 4.8.0 hd8ed1ab_0 conda-forge
typing_extensions 4.8.0 pyha770c72_0 conda-forge
tzdata 2023c h71feb2d_0 conda-forge
ucrt 10.0.22621.0 h57928b3_0 conda-forge
unicodedata2 15.1.0 py39ha55989b_0 conda-forge
vc 14.3 h64f974e_17 conda-forge
vc14_runtime 14.36.32532 hdcecf7f_17 conda-forge
vs2015_runtime 14.36.32532 h05e6639_17 conda-forge
wcwidth 0.2.8 pyhd8ed1ab_0 conda-forge
wheel 0.41.2 pyhd8ed1ab_0 conda-forge
xz 5.4.2 h8cc25b3_0
zeromq 4.3.4 h0e60522_1 conda-forge
zipp 3.17.0 pyhd8ed1ab_0 conda-forge
zlib 1.2.13 hcfcfb64_5 conda-forge
zstd 1.5.5 h12be248_0 conda-forge
- I also tried it with Pycharm on my default account, but the error was the same.
- I know I managed to get the examples running in the past :-)
- I already spent quit a bit of time browsing the internet for a solution, so I thought I would raise an Issue
I greatly appreciate what you are doing, big respect!