Airflowをインストールする時に発生したエラー [Could not build wheels for google-re2, which is required to install pyproject.toml-based projects] の解決方法

エラー概要

MacでApache Airflowをインストールしようとした時にエラー

$ pip install 'apache-airflow==2.7.1' \
 --constraint "https://raw.githubusercontent.com/apache/airflow/constraints-2.7.1/constraints-3.8.txt"

エラー文は下記

Building wheels for collected packages: google-re2
  Building wheel for google-re2 (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for google-re2 (pyproject.toml) 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-10.15-x86_64-cpython-39
      copying re2.py -> build/lib.macosx-10.15-x86_64-cpython-39
      running build_ext
      building '_re2' extension
      creating build/temp.macosx-10.15-x86_64-cpython-39
      clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Users/hiro/.pyenv/versions/3.9.6/include/python3.9 -c _re2.cc -o build/temp.macosx-10.15-x86_64-cpython-39/_re2.o -fvisibility=hidden
      _re2.cc:11:10: fatal error: 'pybind11/pybind11.h' file not found
      #include <pybind11/pybind11.h>
               ^~~~~~~~~~~~~~~~~~~~~
      1 error generated.
      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 google-re2
Failed to build google-re2
ERROR: Could not build wheels for google-re2, which is required to install pyproject.toml-based projects

google-re2というパッケージ周りでエラー
下記を実行しても同様のエラーが出る

$ pip install google-re2

解決方法

原因はPythonのバージョン

自分はバージョン3.9.6を使っていたが、google-re2のPython 3.9用のバイナリバージョンはないらしい

So the problem is your Python thinks that it is on 10.9 and indeed there is no binary version for Python 3.9 of google-re2

Apache Airflow Community より引用

現時点で最新のバージョン3.11.5をインストール

$ pyenv install 3.11.5
$ pyenv global 3.11.5

その後Airflowをインストールすると成功した

$ pip install 'apache-airflow==2.7.1' \                                                 
 --constraint "https://raw.githubusercontent.com/apache/airflow/constraints-2.7.1/constraints-3.8.txt"

参考