Python 3.11 cannot install cvxopt

[francoislaurent]

The cvxopt package has not been updated and binaries are not available for Python 3.11 yet:

Installing collected packages: pytz, tqdm, six, pyparsing, pillow, numpy, networkx, kiwisolver, fonttools, cycler, cvxopt, scipy, python-dateutil, h5py, contourpy, polytope, pandas, matplotlib, rwa-python, tramway
  DEPRECATION: cvxopt is being installed using the legacy 'setup.py install' method, because it does not have a 'pyproject.toml' and the 'wheel' package is not installed. pip 23.1 will enforce this behaviour change. A possible replacement is to enable the '--use-pep517' option. Discussion can be found at https://github.com/pypa/pip/issues/8559
  Running setup.py install for cvxopt: started
  Running setup.py install for cvxopt: finished with status 'error'
  error: subprocess-exited-with-error
  
  × Running setup.py install for cvxopt did not run successfully.
  │ exit code: 1
  ╰─> [49 lines of output]
      running install
      /opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
        warnings.warn(
      running build
      running build_py
      creating build
      creating build/lib.linux-x86_64-cpython-311
      creating build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/coneprog.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/msk.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/__init__.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/modeling.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/_version.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/cvxprog.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/solvers.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/info.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/misc.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      copying src/python/printing.py -> build/lib.linux-x86_64-cpython-311/cvxopt
      UPDATING build/lib.linux-x86_64-cpython-311/cvxopt/_version.py
      set build/lib.linux-x86_64-cpython-311/cvxopt/_version.py to '1.3.0'
      running build_ext
      building 'base' extension
      creating build/temp.linux-x86_64-cpython-311
      creating build/temp.linux-x86_64-cpython-311/src
      creating build/temp.linux-x86_64-cpython-311/src/C
      gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/opt/hostedtoolcache/Python/3.11.2/x64/include/python3.11 -c src/C/base.c -o build/temp.linux-x86_64-cpython-311/src/C/base.o
      gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/opt/hostedtoolcache/Python/3.11.2/x64/include/python3.11 -c src/C/dense.c -o build/temp.linux-x86_64-cpython-311/src/C/dense.o
      src/C/dense.c: In function ‘Matrix_NewFromPyBuffer’:
      src/C/dense.c:277:28: warning: ‘n.d’ may be used uninitialized [-Wmaybe-uninitialized]
        277 |        MAT_BUFD(a)[cnt] = n.d;
            |                           ~^~
      src/C/dense.c:255:13: note: ‘n’ declared here
        255 |      number n;
            |             ^
      gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/opt/hostedtoolcache/Python/3.11.2/x64/include/python3.11 -c src/C/sparse.c -o build/temp.linux-x86_64-cpython-311/src/C/sparse.o
      gcc -shared -Wl,--rpath=/opt/hostedtoolcache/Python/3.11.2/x64/lib -Wl,--rpath=/opt/hostedtoolcache/Python/3.11.2/x64/lib build/temp.linux-x86_64-cpython-311/src/C/base.o build/temp.linux-x86_64-cpython-311/src/C/dense.o build/temp.linux-x86_64-cpython-311/src/C/sparse.o -L/usr/lib -L/opt/hostedtoolcache/Python/3.11.2/x64/lib -lm -llapack -lblas -o build/lib.linux-x86_64-cpython-311/cvxopt/base.cpython-311-x86_64-linux-gnu.so
      building 'blas' extension
      gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/opt/hostedtoolcache/Python/3.11.2/x64/include/python3.11 -c src/C/blas.c -o build/temp.linux-x86_64-cpython-311/src/C/blas.o
      gcc -shared -Wl,--rpath=/opt/hostedtoolcache/Python/3.11.2/x64/lib -Wl,--rpath=/opt/hostedtoolcache/Python/3.11.2/x64/lib build/temp.linux-x86_64-cpython-311/src/C/blas.o -L/usr/lib -L/opt/hostedtoolcache/Python/3.11.2/x64/lib -lblas -o build/lib.linux-x86_64-cpython-311/cvxopt/blas.cpython-311-x86_64-linux-gnu.so
      building 'lapack' extension
      gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/opt/hostedtoolcache/Python/3.11.2/x64/include/python3.11 -c src/C/lapack.c -o build/temp.linux-x86_64-cpython-311/src/C/lapack.o
      gcc -shared -Wl,--rpath=/opt/hostedtoolcache/Python/3.11.2/x64/lib -Wl,--rpath=/opt/hostedtoolcache/Python/3.11.2/x64/lib build/temp.linux-x86_64-cpython-311/src/C/lapack.o -L/usr/lib -L/opt/hostedtoolcache/Python/3.11.2/x64/lib -llapack -lblas -o build/lib.linux-x86_64-cpython-311/cvxopt/lapack.cpython-311-x86_64-linux-gnu.so
      building 'umfpack' extension
      gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -I/usr/include -I/opt/hostedtoolcache/Python/3.11.2/x64/include/python3.11 -c src/C/umfpack.c -o build/temp.linux-x86_64-cpython-311/src/C/umfpack.o
      src/C/umfpack.c:23:10: fatal error: umfpack.h: No such file or directory
         23 | #include "umfpack.h"
            |          ^~~~~~~~~~~
      compilation terminated.
      error: command '/usr/bin/gcc' failed with exit code 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> cvxopt

note: This is an issue with the package mentioned above, not pip.
hint: See above for output from the failure.

Maybe we should temporarily remove the cvxopt dependency. It is optional after all..

[DecBayComp]

Package cvxopt has been updated since then.