Answer by Praveen Kulkarni for How to use export with Python on Linux

If the calling script is python then using subprocess.run is more appropriate. You can pass a modified environment dictionary to the env parameter of subprocess.run.

Here's a step-by-step guide:

1] Import the Subprocess Module: Make sure you have the subprocess module imported in your Python script.

import subprocessimport os

2] Prepare the Environment Variables: Create or modify the environment variables as needed. You can start with a copy of the current environment and then update it with your specific variables.

# Copy the current environmentenv = os.environ.copy()# Set your custom environment variablesenv["MY_VARIABLE"] = "value"env["ANOTHER_VARIABLE"] = "another value"

3] Call subprocess.run with the Custom Environment: Use the env parameter to pass your custom environment to the subprocess.

# Call the subprocess with the custom environmentresult = subprocess.run(["your_script.sh"], env=env)

Replace "your_script.sh" with the path to your script or command.

4] Optional: Handle the Result: You can handle the result of the subprocess call as needed, for example, checking if the script ran successfully.

if result.returncode == 0:    print("Script executed successfully")else:    print("Script failed with return code", result.returncode)