Conda package error during installation

[okmechak]

I am trying to install PyFMI on Ubuntu using conda.

at firs Ive instaled Cython 3.0.4 then cloned and compiled fmi-library:

# get FMIL and build it
git clone https://github.com/modelon-community/fmi-library
cd fmi-library
mkdir build-fmil
cd build-fmil
cmake -DFMILIB_INSTALL_PREFIX=/home/myUser/fmil ..
make install test
# now you should have the FMIL library in:
# /home/myUser/fmil
# export that to terminal before installing PyFMI
export FMIL_HOME=/home/myUser/fmil

And installation of PyFMI gives next error:

(GreenEnergy) southerncross@southerncross:~/Builds/fmi-library$ pip install pyfmi
Collecting pyfmi
  Using cached PyFMI-2.5.tar.gz (4.8 MB)
  Preparing metadata (setup.py) ... error
  error: subprocess-exited-with-error
  
  × python setup.py egg_info did not run successfully.
  │ exit code: 1
  ╰─> [80 lines of output]
      /home/southerncross/anaconda3/envs/GreenEnergy/lib/python3.12/site-packages/Cython/Compiler/Main.py:381: FutureWarning: Cython directive 'language_level' not set, using '3str' for now (Py3). This has changed from earlier releases! File: /tmp/pip-install-whektawf/pyfmi_778b59c1d9d54bfd986ae0020580f04d/src/pyfmi/fmi.pxd
        tree = Parsing.p_module(s, pxd, full_module_name)
      warning: src/pyfmi/fmil_import.pxd:59:4: 'size_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:110:4: 'fmi2_variable_alias_kind_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:125:4: 'fmi2_base_type_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:152:4: 'fmi2_causality_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:164:4: 'fmi2_fmu_kind_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:179:4: 'fmi2_variability_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:189:4: 'fmi2_variable_naming_convension_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:223:4: 'fmi2_dependency_factor_kind_enu_t' redeclared
      warning: src/pyfmi/fmil_import.pxd:230:4: 'fmi2_initial_e.....

How to solve this problem?

Best regards,
Oleh

[modelonrobinandersson]

Hi @okmechak, can you try via conda-forge? See https://github.com/modelon-community/PyFMI#installation-using-conda

[okmechak]

Hi @okmechak, can you try via conda-forge? See https://github.com/modelon-community/PyFMI#installation-using-conda

Thx for reply. At first was not patient enough :) This command took me maybe 2hr to complete and here you can see result:

(GreenEnergy) southerncross@southerncross:~$ conda install -c conda-forge pyfmi
Collecting package metadata (current_repodata.json): done
Solving environment: unsuccessful initial attempt using frozen solve. Retrying with flexible solve.
Solving environment: unsuccessful attempt using repodata from current_repodata.json, retrying with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: unsuccessful initial attempt using frozen solve. Retrying with flexible solve.
Solving environment: - 
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.
failed                                                                                                                                       

UnsatisfiableError: The following specifications were found
to be incompatible with the existing python installation in your environment:

Specifications:

  - pyfmi -> python[version='2.7.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.10,<3.11.0a0|>=3.11,<3.12.0a0|>=3.9,<3.10.0a0|>=3.8,<3.9.0a0|>=3.7,<3.8.0a0|>=3.6,<3.7.0a0|>=3.5,<3.6.0a0|3.4.*']

Your python: python=3.12

If python is on the left-most side of the chain, that's the version you've asked for.
When python appears to the right, that indicates that the thing on the left is somehow
not available for the python version you are constrained to. Note that conda will not
change your python version to a different minor version unless you explicitly specify
that.

The following specifications were found to be incompatible with your system:

  - feature:/linux-64::__glibc==2.38=0
  - pyfmi -> libgcc-ng[version='>=10.3.0'] -> __glibc[version='>=2.17']
  - python=3.12 -> libgcc-ng[version='>=11.2.0'] -> __glibc[version='>=2.17']

Your installed version is: 2.38

[modelonrobinandersson]

Hi @okmechak, it looks like you are unable to install PyFMI as you are using Python 3.12. Currently we have not added support for Python 3.12 and it is a quite large effort due to deprecations in numpy.distutils. Are you able to switch to Python 3.11? It should work fine to install with Python 3.11.

[okmechak]

Downgraded to 3.11 version of python and created new environment in conda and was able to install pyfmi. Thank you for help!