(Sorry if this is the wrong place to post this, seemed like the most appropriate)
There seems to be a problem with the distribution for Windows. The pip install fails, complaining about missing build tools for C++. Would that perhaps be an issue with the wheels uploaded to PyPi?
(venv-psutil-debug) PS C:\Temporary\Debug> python -m pip install --upgrade "psutil == 5.9.2"Collecting psutil==5.9.2
Using cached psutil-5.9.2.tar.gz (479 kB)
Preparing metadata (setup.py) ... done
Building wheels for collected packages: psutil
Building wheel for psutil (setup.py) ... error
error: subprocess-exited-with-error
× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
╰─> [38 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\psutil
copying psutil\_common.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_compat.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psaix.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psbsd.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_pslinux.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psosx.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psposix.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_pssunos.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_pswindows.py -> build\lib.win-amd64-3.7\psutil
copying psutil\__init__.py -> build\lib.win-amd64-3.7\psutil
creating build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\runner.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_aix.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_bsd.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_connections.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_contracts.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_linux.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_memleaks.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_misc.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_osx.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_posix.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_process.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_sunos.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_system.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_testutils.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_unicode.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_windows.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\__init__.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\__main__.py -> build\lib.win-amd64-3.7\psutil\tests
running build_ext
building 'psutil._psutil_windows' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio":
https://visualstudio.microsoft.com/downloads/ [end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for psutil
Running setup.py clean for psutil
Failed to build psutil
Installing collected packages: psutil
Attempting uninstall: psutil
Found existing installation: psutil 5.9.1
Uninstalling psutil-5.9.1:
Successfully uninstalled psutil-5.9.1
Running setup.py install for psutil ... error
error: subprocess-exited-with-error
× Running setup.py install for psutil did not run successfully.
│ exit code: 1
╰─> [38 lines of output]
running install
running build
running build_py
creating build
creating build\lib.win-amd64-3.7
creating build\lib.win-amd64-3.7\psutil
copying psutil\_common.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_compat.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psaix.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psbsd.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_pslinux.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psosx.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_psposix.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_pssunos.py -> build\lib.win-amd64-3.7\psutil
copying psutil\_pswindows.py -> build\lib.win-amd64-3.7\psutil
copying psutil\__init__.py -> build\lib.win-amd64-3.7\psutil
creating build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\runner.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_aix.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_bsd.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_connections.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_contracts.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_linux.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_memleaks.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_misc.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_osx.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_posix.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_process.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_sunos.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_system.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_testutils.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_unicode.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\test_windows.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\__init__.py -> build\lib.win-amd64-3.7\psutil\tests
copying psutil\tests\__main__.py -> build\lib.win-amd64-3.7\psutil\tests
running build_ext
building 'psutil._psutil_windows' extension
error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio":
https://visualstudio.microsoft.com/downloads/ [end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
Rolling back uninstall of psutil
Moving to c:\temporary\debug\venv-psutil-debug\lib\site-packages\psutil-5.9.1.dist-info\
from c:\temporary\debug\venv-psutil-debug\lib\site-packages\~sutil-5.9.1.dist-info
Moving to c:\temporary\debug\venv-psutil-debug\lib\site-packages\psutil\
from c:\temporary\debug\venv-psutil-debug\lib\site-packages\~sutil
error: legacy-install-failure
× Encountered error while trying to install package.
╰─> psutil
note: This is an issue with the package mentioned above, not pip.
hint: See above for output from the failure.