Installation issue -- cython error

[karimintel]

Hello,

I'm trying to install eif in python 3.9 env. but i'm getting the following errors. Any help will be appreciated.

Thanks!

Collecting eif
Using cached eif-2.0.2.tar.gz (1.6 MB)
Preparing metadata (setup.py) ... done
Requirement already satisfied: numpy in /opt/intel/oneapi/intelpython/python3.9/lib/python3.9/site-packages (from eif) (1.26.4)
Requirement already satisfied: cython in /opt/intel/oneapi/intelpython/python3.9/lib/python3.9/site-packages (from eif) (3.0.8)
Building wheels for collected packages: eif
Building wheel for eif (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
╰─> [95 lines of output]
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-cpython-39
copying eif_old.py -> build/lib.linux-x86_64-cpython-39
copying version.py -> build/lib.linux-x86_64-cpython-39
running egg_info
writing eif.egg-info/PKG-INFO
writing dependency_links to eif.egg-info/dependency_links.txt
writing requirements to eif.egg-info/requires.txt
writing top-level names to eif.egg-info/top_level.txt
reading manifest file 'eif.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching 'Readme.md'
writing manifest file 'eif.egg-info/SOURCES.txt'
running build_ext
Compiling _eif.pyx because it changed.
[1/1] Cythonizing _eif.pyx
warning: _eif.pyx:12:8: Global name __eif matched from within class scope in contradiction to to Python 'class private name' rules. This may change in a future release.
warning: _eif.pyx:12:8: Global name __eif matched from within class scope in contradiction to to Python 'class private name' rules. This may change in a future release.

  Error compiling Cython file:
  ------------------------------------------------------------
  ...
      @cython.boundscheck(False)
      @cython.wraparound(False)
      def __cinit__ (self, np.ndarray[double, ndim=2] X not None, int ntrees, int sample_size, int limit=0, int ExtensionLevel=0, int seed=-1):
          if ExtensionLevel < 0:
              raise Exception("Wrong Extension")
          self.thisptr = new __eif.iForest (ntrees, sample_size, limit, ExtensionLevel, seed)
                         ^
  ------------------------------------------------------------
  
  _eif.pyx:31:23: Operation only allowed in c++
  
  Error compiling Cython file:
  ------------------------------------------------------------
  ...
      @property
      def limit(self):
          return self._limit
  
      def __dealloc__ (self):
          del self.thisptr
          ^
  ------------------------------------------------------------
  
  _eif.pyx:51:8: Operation only allowed in c++
  Traceback (most recent call last):

[karimintel]

Saw a similar issue raised by [psmgeelen] in May 2021. I installed g++ but still getting the same errors.