.env Not Working? Why os.getenv() Returns None in Python | Fix Explained

Struggling with environment variables in Python? Getting "None" when using ".env"?

You’re not alone — most developers misunderstand how ".env", "python-dotenv", and the "os" module actually work together.

In this video, you’ll learn:

- What a ".env" file really is
- How "python-dotenv" loads environment variables
- Why "os.getenv()" returns None sometimes
- The difference between local ".env" files and system environment variables
- Common mistakes developers make (and how to fix them)

If you're working with Python, FastAPI, or backend development, this will save you hours of debugging.

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Видео .env Not Working? Why os.getenv() Returns None in Python | Fix Explained канала Debug Clinic