Problem when trying to install vtk python package in Anaconda distribution

[miraut]

• [x] I read the conda-forge documentation and could not find the solution for my problem there.

Issue:

I have some problems when I try to install VTK python package in latest anaconda distribution (2021.5 python 3.8).

If I execute:

conda install -c conda-forge vtk

I only get error messages like:

Collecting package metadata (current_repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.

Anaconda tries to install several times, but finally it does not work.

I have tried to install vtk python package both in a dedicated environment and in the base environment with same results. I also have uninstalled Anaconda python distribution and I tried to install vtk python package in a complete new Anaconda installation. I got the same errors in all the cases.

This is the first time I try to use VTK in python (I have been working with vtk library in C++ until now). I expected it to be easy to install, so I'm pretty surprised. Please, could you tell me what I'm doing wrong?

Thanks !

PS. I can install other python libraries with a similar command (like OpenCV, or even pyTorch) without any problem.

Environment (conda list):

``` $ conda list ``` # packages in environment at C:\portables\Anaconda3: # # Name Version Build Channel _ipyw_jlab_nb_ext_conf 0.1.0 py38_0 alabaster 0.7.12 pyhd3eb1b0_0 anaconda 2021.05 py38_0 anaconda-client 1.7.2 py38_0 anaconda-navigator 2.0.3 py38_0 anaconda-project 0.9.1 pyhd3eb1b0_1 anyio 2.2.0 py38haa95532_2 appdirs 1.4.4 py_0 argh 0.26.2 py38_0 argon2-cffi 20.1.0 py38h2bbff1b_1 asn1crypto 1.4.0 py_0 astroid 2.5 py38haa95532_1 astropy 4.2.1 py38h2bbff1b_1 async_generator 1.10 pyhd3eb1b0_0 atomicwrites 1.4.0 py_0 attrs 20.3.0 pyhd3eb1b0_0 autopep8 1.5.6 pyhd3eb1b0_0 babel 2.9.0 pyhd3eb1b0_0 backcall 0.2.0 pyhd3eb1b0_0 backports 1.0 pyhd3eb1b0_2 backports.functools_lru_cache 1.6.4 pyhd3eb1b0_0 backports.shutil_get_terminal_size 1.0.0 pyhd3eb1b0_3 backports.tempfile 1.0 pyhd3eb1b0_1 backports.weakref 1.0.post1 py_1 bcrypt 3.2.0 py38he774522_0 beautifulsoup4 4.9.3 pyha847dfd_0 bitarray 1.9.2 py38h2bbff1b_1 bkcharts 0.2 py38_0 black 19.10b0 py_0 blas 1.0 mkl bleach 3.3.0 pyhd3eb1b0_0 blosc 1.21.0 h19a0ad4_0 bokeh 2.3.2 py38haa95532_0 boto 2.49.0 py38_0 bottleneck 1.3.2 py38h2a96729_1 brotli 1.0.9 ha925a31_2 brotlipy 0.7.0 py38h2bbff1b_1003 bzip2 1.0.8 he774522_0 ca-certificates 2021.4.13 haa95532_1 certifi 2020.12.5 py38haa95532_0 cffi 1.14.5 py38hcd4344a_0 chardet 4.0.0 py38haa95532_1003 charls 2.2.0 h6c2663c_0 click 7.1.2 pyhd3eb1b0_0 cloudpickle 1.6.0 py_0 clyent 1.2.2 py38_1 colorama 0.4.4 pyhd3eb1b0_0 comtypes 1.1.9 py38haa95532_1002 conda 4.10.1 py38haa244fe_0 conda-forge conda-build 3.21.4 py38haa95532_0 conda-content-trust 0.1.1 pyhd3eb1b0_0 conda-env 2.6.0 1 conda-package-handling 1.7.3 py38h8cc25b3_1 conda-repo-cli 1.0.4 pyhd3eb1b0_0 conda-token 0.3.0 pyhd3eb1b0_0 conda-verify 3.4.2 py_1 console_shortcut 0.1.1 4 contextlib2 0.6.0.post1 py_0 cryptography 3.4.7 py38h71e12ea_0 curl 7.71.1 h2a8f88b_1 cycler 0.10.0 py38_0 cython 0.29.23 py38hd77b12b_0 cytoolz 0.11.0 py38he774522_0 dask 2021.4.0 pyhd3eb1b0_0 dask-core 2021.4.0 pyhd3eb1b0_0 decorator 5.0.6 pyhd3eb1b0_0 defusedxml 0.7.1 pyhd3eb1b0_0 diff-match-patch 20200713 py_0 distributed 2021.4.0 py38haa95532_0 docutils 0.17 py38haa95532_1 entrypoints 0.3 py38_0 et_xmlfile 1.0.1 py_1001 fastcache 1.1.0 py38he774522_0 filelock 3.0.12 pyhd3eb1b0_1 flake8 3.9.0 pyhd3eb1b0_0 flask 1.1.2 pyhd3eb1b0_0 freetype 2.10.4 hd328e21_0 fsspec 0.9.0 pyhd3eb1b0_0 future 0.18.2 py38_1 get_terminal_size 1.0.0 h38e98db_0 gevent 21.1.2 py38h2bbff1b_1 giflib 5.2.1 h62dcd97_0 glob2 0.7 pyhd3eb1b0_0 greenlet 1.0.0 py38hd77b12b_2 h5py 2.10.0 py38h5e291fa_0 hdf5 1.10.4 h7ebc959_0 heapdict 1.0.1 py_0 html5lib 1.1 py_0 icc_rt 2019.0.0 h0cc432a_1 icu 58.2 ha925a31_3 idna 2.10 pyhd3eb1b0_0 imagecodecs 2021.3.31 py38h5da4933_0 imageio 2.9.0 pyhd3eb1b0_0 imagesize 1.2.0 pyhd3eb1b0_0 importlib-metadata 3.10.0 py38haa95532_0 importlib_metadata 3.10.0 hd3eb1b0_0 iniconfig 1.1.1 pyhd3eb1b0_0 intel-openmp 2021.2.0 haa95532_616 intervaltree 3.1.0 py_0 ipykernel 5.3.4 py38h5ca1d4c_0 ipython 7.22.0 py38hd4e2768_0 ipython_genutils 0.2.0 pyhd3eb1b0_1 ipywidgets 7.6.3 pyhd3eb1b0_1 isort 5.8.0 pyhd3eb1b0_0 itsdangerous 1.1.0 pyhd3eb1b0_0 jdcal 1.4.1 py_0 jedi 0.17.2 py38haa95532_1 jinja2 2.11.3 pyhd3eb1b0_0 joblib 1.0.1 pyhd3eb1b0_0 jpeg 9b hb83a4c4_2 json5 0.9.5 py_0 jsonschema 3.2.0 py_2 jupyter 1.0.0 py38_7 jupyter-packaging 0.7.12 pyhd3eb1b0_0 jupyter_client 6.1.12 pyhd3eb1b0_0 jupyter_console 6.4.0 pyhd3eb1b0_0 jupyter_core 4.7.1 py38haa95532_0 jupyter_server 1.4.1 py38haa95532_0 jupyterlab 3.0.14 pyhd3eb1b0_1 jupyterlab_pygments 0.1.2 py_0 jupyterlab_server 2.4.0 pyhd3eb1b0_0 jupyterlab_widgets 1.0.0 pyhd3eb1b0_1 keyring 22.3.0 py38haa95532_0 kiwisolver 1.3.1 py38hd77b12b_0 krb5 1.18.2 hc04afaa_0 lazy-object-proxy 1.6.0 py38h2bbff1b_0 lcms2 2.12 h83e58a3_0 lerc 2.2.1 hd77b12b_0 libaec 1.0.4 h33f27b4_1 libarchive 3.4.2 h5e25573_0 libcurl 7.71.1 h2a8f88b_1 libdeflate 1.7 h2bbff1b_5 libiconv 1.15 h1df5818_7 liblief 0.10.1 ha925a31_0 libopencv 4.0.1 hbb9e17c_0 libpng 1.6.37 h2a8f88b_0 libsodium 1.0.18 h62dcd97_0 libspatialindex 1.9.3 h6c2663c_0 libssh2 1.9.0 h7a1dbc1_1 libtiff 4.2.0 hd0e1b90_0 libxml2 2.9.10 hb89e7f3_3 libxslt 1.1.34 he774522_0 libzopfli 1.0.3 ha925a31_0 llvmlite 0.36.0 py38h34b8924_4 locket 0.2.1 py38haa95532_1 lxml 4.6.3 py38h9b66d53_0 lz4-c 1.9.3 h2bbff1b_0 lzo 2.10 he774522_2 m2w64-gcc-libgfortran 5.3.0 6 m2w64-gcc-libs 5.3.0 7 m2w64-gcc-libs-core 5.3.0 7 m2w64-gmp 6.1.0 2 m2w64-libwinpthread-git 5.0.0.4634.697f757 2 markupsafe 1.1.1 py38he774522_0 matplotlib 3.3.4 py38haa95532_0 matplotlib-base 3.3.4 py38h49ac443_0 mccabe 0.6.1 py38_1 menuinst 1.4.16 py38he774522_1 mistune 0.8.4 py38he774522_1000 mkl 2021.2.0 haa95532_296 mkl-service 2.3.0 py38h2bbff1b_1 mkl_fft 1.3.0 py38h277e83a_2 mkl_random 1.2.1 py38hf11a4ad_2 mock 4.0.3 pyhd3eb1b0_0 more-itertools 8.7.0 pyhd3eb1b0_0 mpmath 1.2.1 py38haa95532_0 msgpack-python 1.0.2 py38h59b6b97_1 msys2-conda-epoch 20160418 1 multipledispatch 0.6.0 py38_0 mypy_extensions 0.4.3 py38_0 navigator-updater 0.2.1 py38_0 nbclassic 0.2.6 pyhd3eb1b0_0 nbclient 0.5.3 pyhd3eb1b0_0 nbconvert 6.0.7 py38_0 nbformat 5.1.3 pyhd3eb1b0_0 nest-asyncio 1.5.1 pyhd3eb1b0_0 networkx 2.5 py_0 nltk 3.6.1 pyhd3eb1b0_0 nose 1.3.7 pyhd3eb1b0_1006 notebook 6.3.0 py38haa95532_0 numba 0.53.1 py38hf11a4ad_0 numexpr 2.7.3 py38hb80d3ca_1 numpy 1.20.1 py38h34a8a5c_0 numpy-base 1.20.1 py38haf7ebc8_0 numpydoc 1.1.0 pyhd3eb1b0_1 olefile 0.46 py_0 opencv 4.0.1 py38h2a7c758_0 openjpeg 2.3.0 h5ec785f_1 openpyxl 3.0.7 pyhd3eb1b0_0 openssl 1.1.1k h2bbff1b_0 packaging 20.9 pyhd3eb1b0_0 pandas 1.2.4 py38hd77b12b_0 pandoc 2.12 haa95532_0 pandocfilters 1.4.3 py38haa95532_1 paramiko 2.7.2 py_0 parso 0.7.0 py_0 partd 1.2.0 pyhd3eb1b0_0 path 15.1.2 py38haa95532_0 path.py 12.5.0 0 pathlib2 2.3.5 py38haa95532_2 pathspec 0.7.0 py_0 patsy 0.5.1 py38_0 pep8 1.7.1 py38_0 pexpect 4.8.0 pyhd3eb1b0_3 pickleshare 0.7.5 pyhd3eb1b0_1003 pillow 8.2.0 py38h4fa10fc_0 pip 21.0.1 py38haa95532_0 pkginfo 1.7.0 py38haa95532_0 pluggy 0.13.1 py38haa95532_0 ply 3.11 py38_0 powershell_shortcut 0.0.1 3 prometheus_client 0.10.1 pyhd3eb1b0_0 prompt-toolkit 3.0.17 pyh06a4308_0 prompt_toolkit 3.0.17 hd3eb1b0_0 psutil 5.8.0 py38h2bbff1b_1 ptyprocess 0.7.0 pyhd3eb1b0_2 py 1.10.0 pyhd3eb1b0_0 py-lief 0.10.1 py38ha925a31_0 py-opencv 4.0.1 py38he44ac1e_0 pycodestyle 2.6.0 pyhd3eb1b0_0 pycosat 0.6.3 py38h2bbff1b_0 pycparser 2.20 py_2 pycurl 7.43.0.6 py38h7a1dbc1_0 pydocstyle 6.0.0 pyhd3eb1b0_0 pyerfa 1.7.3 py38h2bbff1b_0 pyflakes 2.2.0 pyhd3eb1b0_0 pygments 2.8.1 pyhd3eb1b0_0 pylint 2.7.4 py38haa95532_1 pyls-black 0.4.6 hd3eb1b0_0 pyls-spyder 0.3.2 pyhd3eb1b0_0 pynacl 1.4.0 py38h62dcd97_1 pyodbc 4.0.30 py38ha925a31_0 pyopenssl 20.0.1 pyhd3eb1b0_1 pyparsing 2.4.7 pyhd3eb1b0_0 pyqt 5.9.2 py38ha925a31_4 pyreadline 2.1 py38_1 pyrsistent 0.17.3 py38he774522_0 pysocks 1.7.1 py38haa95532_0 pytables 3.6.1 py38ha5be198_0 pytest 6.2.3 py38haa95532_2 python 3.8.8 hdbf39b2_5 python-dateutil 2.8.1 pyhd3eb1b0_0 python-jsonrpc-server 0.4.0 py_0 python-language-server 0.36.2 pyhd3eb1b0_0 python-libarchive-c 2.9 pyhd3eb1b0_1 python_abi 3.8 1_cp38 conda-forge pytz 2021.1 pyhd3eb1b0_0 pywavelets 1.1.1 py38he774522_2 pywin32 227 py38he774522_1 pywin32-ctypes 0.2.0 py38_1000 pywinpty 0.5.7 py38_0 pyyaml 5.4.1 py38h2bbff1b_1 pyzmq 20.0.0 py38hd77b12b_1 qdarkstyle 2.8.1 py_0 qt 5.9.7 vc14h73c81de_0 qtawesome 1.0.2 pyhd3eb1b0_0 qtconsole 5.0.3 pyhd3eb1b0_0 qtpy 1.9.0 py_0 regex 2021.4.4 py38h2bbff1b_0 requests 2.25.1 pyhd3eb1b0_0 rope 0.18.0 py_0 rtree 0.9.7 py38h2eaa2aa_1 ruamel_yaml 0.15.100 py38h2bbff1b_0 scikit-image 0.18.1 py38hf11a4ad_0 scikit-learn 0.24.1 py38hf11a4ad_0 scipy 1.6.2 py38h66253e8_1 seaborn 0.11.1 pyhd3eb1b0_0 send2trash 1.5.0 pyhd3eb1b0_1 setuptools 52.0.0 py38haa95532_0 simplegeneric 0.8.1 py38_2 singledispatch 3.6.1 pyhd3eb1b0_1001 sip 4.19.13 py38ha925a31_0 six 1.15.0 py38haa95532_0 snappy 1.1.8 h33f27b4_0 sniffio 1.2.0 py38haa95532_1 snowballstemmer 2.1.0 pyhd3eb1b0_0 sortedcollections 2.1.0 pyhd3eb1b0_0 sortedcontainers 2.3.0 pyhd3eb1b0_0 soupsieve 2.2.1 pyhd3eb1b0_0 sphinx 4.0.1 pyhd3eb1b0_0 sphinxcontrib 1.0 py38_1 sphinxcontrib-applehelp 1.0.2 pyhd3eb1b0_0 sphinxcontrib-devhelp 1.0.2 pyhd3eb1b0_0 sphinxcontrib-htmlhelp 1.0.3 pyhd3eb1b0_0 sphinxcontrib-jsmath 1.0.1 pyhd3eb1b0_0 sphinxcontrib-qthelp 1.0.3 pyhd3eb1b0_0 sphinxcontrib-serializinghtml 1.1.4 pyhd3eb1b0_0 sphinxcontrib-websupport 1.2.4 py_0 spyder 4.2.5 py38haa95532_0 spyder-kernels 1.10.2 py38haa95532_0 sqlalchemy 1.4.7 py38h2bbff1b_0 sqlite 3.35.4 h2bbff1b_0 statsmodels 0.12.2 py38h2bbff1b_0 sympy 1.8 py38haa95532_0 tbb 2020.3 h74a9793_0 tblib 1.7.0 py_0 terminado 0.9.4 py38haa95532_0 testpath 0.4.4 pyhd3eb1b0_0 textdistance 4.2.1 pyhd3eb1b0_0 threadpoolctl 2.1.0 pyh5ca1d4c_0 three-merge 0.1.1 pyhd3eb1b0_0 tifffile 2021.4.8 pyhd3eb1b0_2 tk 8.6.10 he774522_0 toml 0.10.2 pyhd3eb1b0_0 toolz 0.11.1 pyhd3eb1b0_0 tornado 6.1 py38h2bbff1b_0 tqdm 4.59.0 pyhd3eb1b0_1 traitlets 5.0.5 pyhd3eb1b0_0 typed-ast 1.4.2 py38h2bbff1b_1 typing_extensions 3.7.4.3 pyha847dfd_0 ujson 4.0.2 py38hd77b12b_0 unicodecsv 0.14.1 py38_0 urllib3 1.26.4 pyhd3eb1b0_0 vc 14.2 h21ff451_1 vs2015_runtime 14.27.29016 h5e58377_2 watchdog 1.0.2 py38haa95532_1 wcwidth 0.2.5 py_0 webencodings 0.5.1 py38_1 werkzeug 1.0.1 pyhd3eb1b0_0 wheel 0.36.2 pyhd3eb1b0_0 widgetsnbextension 3.5.1 py38_0 win_inet_pton 1.1.0 py38haa95532_0 win_unicode_console 0.5 py38_0 wincertstore 0.2 py38_0 winpty 0.4.3 4 wrapt 1.12.1 py38he774522_1 xlrd 2.0.1 pyhd3eb1b0_0 xlsxwriter 1.3.8 pyhd3eb1b0_0 xlwings 0.23.0 py38haa95532_0 xlwt 1.3.0 py38_0 xmltodict 0.12.0 py_0 xz 5.2.5 h62dcd97_0 yaml 0.2.5 he774522_0 yapf 0.31.0 pyhd3eb1b0_0 zeromq 4.3.3 ha925a31_3 zfp 0.5.5 hd77b12b_6 zict 2.0.0 pyhd3eb1b0_0 zipp 3.4.1 pyhd3eb1b0_0 zlib 1.2.11 h62dcd97_4 zope 1.0 py38_1 zope.event 4.5.0 py38_0 zope.interface 5.3.0 py38h2bbff1b_0 zstd 1.4.5 h04227a9_0

Details about conda and system ( conda info ):

``` $ conda info ``` active environment : None user config file : C:\Users\XXXX\.condarc populated config files : C:\Users\XXXX\.condarc conda version : 4.10.1 conda-build version : 3.21.4 python version : 3.8.8.final.0 virtual packages : __cuda=11.3=0 __win=0=0 __archspec=1=x86_64 base environment : C:\portables\Anaconda3 (writable) conda av data dir : C:\portables\Anaconda3\etc\conda conda av metadata url : https://repo.anaconda.com/pkgs/main channel URLs : https://conda.anaconda.org/conda-forge/win-64 https://conda.anaconda.org/conda-forge/noarch https://repo.anaconda.com/pkgs/main/win-64 https://repo.anaconda.com/pkgs/main/noarch https://repo.anaconda.com/pkgs/free/win-64 https://repo.anaconda.com/pkgs/free/noarch https://repo.anaconda.com/pkgs/r/win-64 https://repo.anaconda.com/pkgs/r/noarch https://repo.anaconda.com/pkgs/msys2/win-64 https://repo.anaconda.com/pkgs/msys2/noarch package cache : C:\portables\Anaconda3\pkgs C:\Users\DMTA\.conda\pkgs C:\Users\DMTA\AppData\Local\conda\conda\pkgs envs directories : C:\portables\Anaconda3\envs C:\Users\DMTA\.conda\envs C:\Users\DMTA\AppData\Local\conda\conda\envs platform : win-64 user-agent : conda/4.10.1 requests/2.25.1 CPython/3.8.8 Windows/10 Windows/10.0.19041 administrator : False netrc file : None offline mode : False

[matthiasdiener]

Collecting package metadata (current_repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.

Are there any error messages after the above messages?

[Tobias-Fischer]

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