Installation with pip fails

[ccalas]

Hi,

I'm trying to install CGAL python bindings with pip, but I'm not able to make it work.

Installing with pip install cgal fails with a metadata version mismatch error (loops endlessly)

Collecting cgal
  Downloading cgal-5.6.post202402071826.tar.gz (17 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Discarding https://files.pythonhosted.org/packages/fe/14/abde1bed17d75402b25f60fb4cc39b4f7a2e862756476c2cc5d5c52628b9/cgal-5.6.post202402071826.tar.gz (from https://pypi.org/simple/cgal/) (requires-python:>=3.6): Requested cgal from https://files.pythonhosted.org/packages/fe/14/abde1bed17d75402b25f60fb4cc39b4f7a2e862756476c2cc5d5c52628b9/cgal-5.6.post202402071826.tar.gz has inconsistent version: expected '5.6.post202402071826', but metadata has '5.4.1'
  Downloading cgal-5.6.post202402071514.tar.gz (17 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Discarding https://files.pythonhosted.org/packages/db/1e/810d888a58981ba1b9d1b97d861950eb300a9115b0e9f5e6e57293b69828/cgal-5.6.post202402071514.tar.gz (from https://pypi.org/simple/cgal/) (requires-python:>=3.6): Requested cgal from https://files.pythonhosted.org/packages/db/1e/810d888a58981ba1b9d1b97d861950eb300a9115b0e9f5e6e57293b69828/cgal-5.6.post202402071514.tar.gz has inconsistent version: expected '5.6.post202402071514', but metadata has '5.4.1'
  Downloading cgal-5.6.post202401251120.tar.gz (17 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done

I tried to override the version used during installation using CGAL_PYTHON_MODULE_VERSION=5.6.post202402071826 pip install cgal. This gets passed this error but raises another one during build.

Defaulting to user installation because normal site-packages is not writeable
Collecting cgal
  Using cached cgal-5.6.post202402071826.tar.gz (17 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: numpy in /usr/lib64/python3.13/site-packages (from cgal) (1.26.4)
Building wheels for collected packages: cgal
  Building wheel for cgal (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for cgal (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [26 lines of output]
      /tmp/pip-build-env-e8o9ekpl/overlay/lib/python3.13/site-packages/setuptools/dist.py:761: SetuptoolsDeprecationWarning: License classifiers are deprecated.
      !!
      
              ********************************************************************************
              Please consider removing the following classifiers in favor of a SPDX license expression:
      
              License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)
      
              See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
              ********************************************************************************
      
      !!
        self._finalize_license_expression()
      running bdist_wheel
      running build
      running build_ext
      cmake /tmp/pip-install-s71i123a/cgal_e1d7573412664eeabcb2b0a0719ba21c -DBUILD_JAVA=OFF -DBUILD_PYTHON=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=bdist.linux-x86_64/wheel -DPython_EXECUTABLE=/usr/bin/python -DINSTALL_FROM_SETUP=ON -DBoost_DEBUG=TRUE
      CMake Warning:
        Ignoring extra path from command line:
      
         "/tmp/pip-install-s71i123a/cgal_e1d7573412664eeabcb2b0a0719ba21c"
      
      
      CMake Error: The source directory "/tmp/pip-install-s71i123a/cgal_e1d7573412664eeabcb2b0a0719ba21c" does not appear to contain CMakeLists.txt.
      Specify --help for usage, or press the help button on the CMake GUI.
      error: command '/usr/bin/cmake' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for cgal
Failed to build cgal
ERROR: Failed to build installable wheels for some pyproject.toml based projects (cgal)

What am I doing wrong here? Missing some dependencies?

Thanks for your help!

[bhupenderbindal]

I had the same issue.
I used the conda-forge package, https://anaconda.org/conda-forge/cgal, to obtain cgal:
conda install conda-forge::cgal