Edited: Setting relative path to .env (Connecting Flask code to Glitch's .env file)

[cdx]

How does one set .env file with the Flask code?

[javaarchive]

1. Add to requirements.txt this module python-dotenv · PyPI
2. Redo your pip install -r requirements.txt if it isn’t done automatically
3. Put the following in the module loading section of your main file

from dotenv import load_dotenv

load_dotenv()

[cdx]

Yes, these have been satisfied already since day 1.

Nevertheless, I’ve re-done everything as suggested, but error still remains

[javaarchive]

You accidentally put the string into your code not the requirements.txt

[cdx]

Those are separate screenshots in one image
the string is in its own
and the requirements is in its own too

[javaarchive]

Try running each line in glitch’s terminal (in the menu Tools) so type python3 with an enter
Then type each of the lines for a minimal reproducible example

from dotenv import load_dotenv
load_dotenv()
print(len(os.getenv("STATIC_DIR")))

This will print out the length of your static dir variable in .env allowing you to figure out if things are working but not print out your secret itself.