pip install netgraph gives errors with Microsoft Visuals and wheels for rectangle-packer

[Renske27]

Hi, I tried to install Netgraph, but there is a problem with Microsoft Visuals and wheels for the rectangle-packer. Does somebody know how to resolve this issue?

I get the following error message (I just put everything, so it is quite long):
pip install netgraph
Collecting netgraph
Using cached netgraph-4.13.2-py3-none-any.whl.metadata (12 kB)
Requirement already satisfied: numpy in c:\users\rensk\anaconda3\lib\site-packages (from netgraph) (1.19.5)
Requirement already satisfied: scipy in c:\users\rensk\anaconda3\lib\site-packages (from netgraph) (1.7.0)
Requirement already satisfied: matplotlib>=1.5 in c:\users\rensk\anaconda3\lib\site-packages (from netgraph) (3.1.3)
Collecting rectangle-packer (from netgraph)
Using cached rectangle-packer-2.0.2.tar.gz (99 kB)
Preparing metadata (setup.py) ... done
Collecting grandalf (from netgraph)
Using cached grandalf-0.8-py3-none-any.whl.metadata (1.7 kB)
Requirement already satisfied: cycler>=0.10 in c:\users\rensk\anaconda3\lib\site-packages (from matplotlib>=1.5->netgraph) (0.10.0)
Requirement already satisfied: kiwisolver>=1.0.1 in c:\users\rensk\anaconda3\lib\site-packages (from matplotlib>=1.5->netgraph) (1.1.0)
Requirement already satisfied: pyparsing!=2.0.4,!=2.1.2,!=2.1.6,>=2.0.1 in c:\users\rensk\anaconda3\lib\site-packages (from matplotlib>=1.5->netgraph) (2.4.6)
Requirement already satisfied: python-dateutil>=2.1 in c:\users\rensk\anaconda3\lib\site-packages (from matplotlib>=1.5->netgraph) (2.8.1)
Requirement already satisfied: six in c:\users\rensk\anaconda3\lib\site-packages (from cycler>=0.10->matplotlib>=1.5->netgraph) (1.14.0)
Requirement already satisfied: setuptools in c:\users\rensk\anaconda3\lib\site-packages (from kiwisolver>=1.0.1->matplotlib>=1.5->netgraph) (45.2.0.post20200210)
Using cached netgraph-4.13.2-py3-none-any.whl (96 kB)
Using cached grandalf-0.8-py3-none-any.whl (41 kB)
Building wheels for collected packages: rectangle-packer
Building wheel for rectangle-packer (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
╰─> [41 lines of output]
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-3.7
creating build\lib.win-amd64-3.7\rpack
copying rpack_init_.py -> build\lib.win-amd64-3.7\rpack
running egg_info
writing rectangle_packer.egg-info\PKG-INFO
writing dependency_links to rectangle_packer.egg-info\dependency_links.txt
writing top-level names to rectangle_packer.egg-info\top_level.txt
reading manifest file 'rectangle_packer.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'rectangle_packer.egg-info\SOURCES.txt'
copying rpack_core.pxd -> build\lib.win-amd64-3.7\rpack
copying rpack_core.pyx -> build\lib.win-amd64-3.7\rpack
running build_ext
cythoning rpack/_core.pyx to rpack_core.c

  Error compiling Cython file:
  ------------------------------------------------------------
  ...
      """

  # The following four functions are used as compare-functions for
  # sorting `Rectangle` structs by index, width, height and area.

  cdef int rectangle_index_cmp(const void *a, const void *b) noexcept nogil:
                                                            ^
  ------------------------------------------------------------

  rpack\_core.pyx:37:59: Syntax error in C variable declaration
  building 'rpack._core' extension
  creating build\temp.win-amd64-3.7
  creating build\temp.win-amd64-3.7\Release
  creating build\temp.win-amd64-3.7\Release\rpack
  creating build\temp.win-amd64-3.7\Release\src
  C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.40.33807\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Iinclude -IC:\Users\rensk\anaconda3\include -IC:\Users\rensk\anaconda3\in

clude "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.40.33807\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" "-IC:\Program Files (x86)\Wind
ows Kits\10\include\10.0.26100.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.26100.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.26100.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.26100.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.26100.0\cppwinrt" /Tcrpack_core.c /Fobuild\temp.win-amd64-3.7\Release\rpack_core.obj
_core.c
rpack_core.c(1): fatal error C1189: #error: Do not use this file, it is the result of a failed Cython compilation.
error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.40.33807\bin\HostX86\x64\cl.exe' failed with exit status 2
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for rectangle-packer
Running setup.py clean for rectangle-packer
Failed to build rectangle-packer
ERROR: Could not build wheels for rectangle-packer, which is required to install pyproject.toml-based projects

[paulbrodersen]

I am not the maintainer of rectangle-packer, so there isn't anything I can do to address this issue. I would suggest to raise the issue on their github instead. After a very brief scroll through their open issues, this one seems related.

Until the issue gets resolved on rectangle-packers end, I would try the following:

1. Install netgraph with conda, not pip, in a clean virtual environment.
2. First install rectangle-packer in a clean virtual environment, then netgraph.
3. Repeat step 2 with different cython versions, if necessary.

[Renske27]

Thanks for the advice. It is now working.

[paulbrodersen]

What bit worked, if you don't mind me asking? Then the next person will know what to do.