After I install python 3.10, then I use pip3 install homeassistant
it came out as followed:
cuz I’m a rookie in HA, can’t find any answer on google, hope any genius can help me out 
Building wheels for collected packages: ciso8601
Building wheel for ciso8601 (pyproject.toml) ... error
error: subprocess-exited-with-error
× Building wheel for ciso8601 (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [14 lines of output]
running bdist_wheel
running build
running build_py
creating build
creating build/lib.macosx-10.9-universal2-cpython-310
creating build/lib.macosx-10.9-universal2-cpython-310/ciso8601
copying ciso8601/__init__.pyi -> build/lib.macosx-10.9-universal2-cpython-310/ciso8601
copying ciso8601/py.typed -> build/lib.macosx-10.9-universal2-cpython-310/ciso8601
running build_ext
building 'ciso8601' extension
creating build/temp.macosx-10.9-universal2-cpython-310
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch arm64 -arch x86_64 -g -DCISO8601_VERSION=2.2.0 -DCISO8601_CACHING_ENABLED=1 -I/Library/Frameworks/Python.framework/Versions/3.10/include/python3.10 -c module.c -o build/temp.macosx-10.9-universal2-cpython-310/module.o
xcode-select: note: no developer tools were found at '/Applications/Xcode.app', requesting install. Choose an option in the dialog to download the command line developer tools.
error: command '/usr/bin/clang' failed with exit code 1
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for ciso8601
Failed to build ciso8601
ERROR: Could not build wheels for ciso8601, which is required to install pyproject.toml-based projects