python-dotenv — one call, one decision

load_dotenv() has a small promise: read a .env file and make its values available through os.environ.

The view follows one call with no framework setup. It shows the normal path, then the one decision that changes the result: an existing environment variable wins unless override=True.

No part of this library sits in this repository. The pack sets code_source=git+https://github.com/theskumar/python-dotenv@v1.0.1, so Vyasa keeps one shallow clone under ~/.cache/vyasa/code/ and every node and edge links into it. Hover a node for the function, or an edge for the exact line that carries that step.

H2The reader's testURL copied

After one pass, you should be able to answer three questions:

• Where does the default .env path come from?
• When does a parsed key change os.environ?
• What changes when the file is missing or override=True is used?

Each answer is one hover away. The five nodes name the functions that own the work. The ten edges point at the call, the return, and the two branches of the override rule.

The graph keeps the answer narrow. It does not explain every supported .env syntax, CLI command, or framework integration.