Installation fails

[Zhonghexin]

Defaulting to user installation because normal site-packages is not writeable
Collecting ctc-segmentation
Using cached ctc_segmentation-1.7.4.tar.gz (73 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: Cython in c:\users\zhx\appdata\roaming\python\python39\site-packages (from ctc-segmentation) (0.29.32)
Requirement already satisfied: numpy in c:\users\zhx\appdata\roaming\python\python39\site-packages (from ctc-segmentation) (1.23.4)
Requirement already satisfied: setuptools in c:\program files\python39\lib\site-packages (from ctc-segmentation) (56.0.0)
Building wheels for collected packages: ctc-segmentation
Building wheel for ctc-segmentation (pyproject.toml) ... error
error: subprocess-exited-with-error

× Building wheel for ctc-segmentation (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [12 lines of output]
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-cpython-39
creating build\lib.win-amd64-cpython-39\ctc_segmentation
copying ctc_segmentation\ctc_segmentation.py -> build\lib.win-amd64-cpython-39\ctc_segmentation
copying ctc_segmentation\partitioning.py -> build\lib.win-amd64-cpython-39\ctc_segmentation
copying ctc_segmentation_init_.py -> build\lib.win-amd64-cpython-39\ctc_segmentation
running build_ext
building 'ctc_segmentation.ctc_segmentation_dyn' extension
error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
[end of output]

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

[lumaku]

The Cython code is compiled at setup. As your error message indicates, error: Microsoft Visual C++ 14.0 or greater is required, it seems that you don't have a compiler. Linux distributions usually include build tools such as a compiler, but Windows does not by default. You have to install it for yourself. If you have already a compiler on your system, make sure that the PATH variable is set appropriately.