[Python] Error in airflow installation. Failed at building wheel for google-re2 & greenlet...

When I follow the official documentation from Apache Airflow to pip3 install Airflow using the constraints file: https://airflow.apache.org/docs/apache-airflow/stable/start.html

I got the error message. The main part of the error message is:

> Building wheels for collected packages: google-re2, pendulum, greenlet
> Building wheel for google-re2 (setup.py) ... error error:
> subprocess-exited-with-error
> × python setup.py bdist_wheel did not run successfully. │ exit code: 1 ╰─> [15 lines of output]
> running bdist_wheel
> running build
> running build_py
> creating build
> creating build/lib.macosx-10.9-x86_64-cpython-39
> copying re2.py -> build/lib.macosx-10.9-x86_64-cpython-39
> running build_ext
> building '_re2' extension
> creating build/temp.macosx-10.9-x86_64-cpython-39
> clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -fwrapv -O2 -Wall -fPIC -O2 -isystem /Users/yuenfannie/opt/anaconda3/include -arch x86_64
> -I/Users/yuenfannie/opt/anaconda3/include -fPIC -O2 -isystem /Users/yuenfannie/opt/anaconda3/include -arch x86_64
> -I/Users/yuenfannie/opt/anaconda3/include/python3.9 -c _re2.cc -o build/temp.macosx-10.9-x86_64-cpython-39/_re2.o -fvisibility=hidden
> clang: error: unable to read SDK settings for '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
> clang: error: unable to read SDK settings for '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
> sh: line 1: 848 Bus error: 10 /Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -sdk
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk
> -find clang 2> /dev/null
> clang: error: unable to find utility "clang", not a developer tool or in PATH
> error: command '/usr/bin/clang' failed with exit code 72
> [end of output]
> note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for google-re2


Is there anything to be done with setup.py or bdist_wheel? What should be done in this case? Any comments are welcome.

Continue reading...