joppevos opened a new pull request, #22901:
URL: https://github.com/apache/airflow/pull/22901

   
   Running the new python Breeze environment crashes, if Docker is not running.
   This PR will give a descriptive error.
   
   Traceback of the error:
   ```
     File 
"/Users/vosjoppe/github/airflow/dev/breeze/src/airflow_breeze/breeze.py", line 
707, in shell
       enter_shell(
     File 
"/Users/vosjoppe/github/airflow/dev/breeze/src/airflow_breeze/shell/enter_shell.py",
 line 193, in enter_shell
       check_docker_version(verbose)
     File 
"/Users/vosjoppe/github/airflow/dev/breeze/src/airflow_breeze/utils/docker_command_utils.py",
 line 181, in check_docker_version
       if docker_version_output.returncode == 0:
   AttributeError: 'NoneType' object has no attribute 'returncode'
   ```
   
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