How Do I Set and Read Environment Variables in Python?

Setting and Reading Environment Variables in Python

In Python, setting environment variables requires assigning a string value to the appropriate key in the os.environ dictionary. Attempting to assign non-string values to environment variables will raise a TypeError.

To resolve your issue, assign a string value to the environment variable:

import os
os.environ["DEBUSSY"] = "1"

To read the value of an environment variable, simply access its key in the os.environ dictionary:

print(os.environ["DEBUSSY"])

It's important to note that child processes inherit the environment of the parent process. Therefore, any environment variables set in the parent process will be accessible to its child processes. No additional action is required to pass environment variables to child processes.

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