I have installed MSYS2 on windows. And installed few packages (pandas matplotlib) via pacman. I also want install some non-MSYS2 packages. Then I got a Error message. warning: externally-managed-environment × This environment is externally managed ╰─> To install Python packages system-wide, try 'pacman -S $MINGW_PACKAGE_PREFIX-python-xyz', where xyz is the package you are trying to install. If you wish to install a non-MSYS2-packaged Python package, create a virtual environment using 'python -m venv path/to/venv'. Then use path/to/venv/bin/python and path/to/venv/bin/pip. If you wish to install a non-MSYS2 packaged Python application, it may be easiest to use 'pipx install xyz', which will manage a virtual environment for you. Make sure you have $MINGW_PACKAGE_PREFIX-python-pipx installed via pacman. note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages. hint: See PEP 668 for the detailed specification. Well. I just use python -m venv venv to create a virtual python environment. And activate it. [le@ZXL][~]$: cd pyevenv/ [le@ZXL][~/pyevenv]$: ls venv [le@ZXL][~/pyevenv]$: source venv/bin/activate ((venv) ) [le@ZXL][~/pyevenv]$: pip install pandas But it will return a fatal error C:/msys64/tmp/pip-install-yfasx6im/ninja_9259a8f70f0e41668e16c17a4d97d8e5/ninja-upstream/src/subprocess-posix.cc:18:10: fatal error: sys/select.h: No such file or directory 18 | #include <sys/select.h> | ^~~~~~~~~~~~~~ compilation terminated. make[2]: *** [_deps/ninja-build/CMakeFiles/libninja.dir/build.make:429: _deps/ninja-build/CMakeFiles/libninja.dir/src/subprocess-posix.cc.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:193: _deps/ninja-build/CMakeFiles/libninja.dir/all] Error 2 make: *** [Makefile:136: all] Error 2 *** CMake build failed [end of output] It seems that python-pip on MSYS2 does not identify the current system. But I do not know how to solve it. Is there a way to install non-MSYS2 python packages on Windows? What did i do wrong Continue reading...
