[Python] python-dotenv (.env)

安裝¹GitHub: python-dotenv

pip install python-dotenv

.env

ROOT=root
USER=${ROOT}

load_dotenv()

By default, load_dotenv() will:

• Look for a .env file in the same directory as the Python script (or higher up the directory tree).
• Read each key-value pair and add it to os.environ.
• Not override an environment variable that is already set, unless you explicitly pass override=True.

from dotenv import load_dotenv
load_dotenv()

import os
print(os.getenv('USER')) # root

Last Updated on 2025/12/10 by A1go

References

• 1
  GitHub: python-dotenv