python-ecosys/dotenv: Add .env file loader package.

[Holdrulff]

This package provides a lightweight .env file loader for MicroPython, allowing secure storage of credentials and configuration outside of source code.

Features:

• Zero dependencies
• ~1.9KB size
• Works on ESP32, ESP8266, RP2040
• Tested on ESP32-C3
• Simple 2-function API: load_dotenv() and get_env()

[Josverl]

@Holdrulff ,

I notice that you have closed your PR, possibly in favor of : https://github.com/Holdrulff/micropython-dotenv

That is perfectly fine - possibly you may want to let others know of this by creating a post in Show and Tell

[Holdrulff]

@Josverl I closed because I wanted to check if I was committing it in the right place, but I reopened it again

[dpgeorge]

Thanks for the contribution!

Usually a package in python-ecosys would be a subset of the corresponding "big" Python package. But I see that dotenv.get_env() doesn't exist in big dotenv. Instead it's dotenv.get_key(file, key).

What do you think about making the API here a subset of the standard dotenv?

[dpgeorge]

Closing due to inactivity. Feel free to reopen with a response to the above.