A minimal module for working with dotenv files.
>>> from dotenv import load_dotenv, getenv
>>> load_dotenv()Load the dotenv file from .env. If any error occurs, nothing will happen.
However, if the value is being retrieved from a load_dotenv() call:
>>> env = load_dotenv()
>>> print(env) # `None` if all is alright.
>>> print(env) # In case of `Exception`, Houston, we have a problem.
>>> load_dotenv(verbose=True)In this case, if there's an exception, the function will raise it.
>>> key: str = getenv("API_KEY")getenv() returns the value from the environment by the key if it exists.
If the key doesn't exist, getenv() will raise a KeyError.
To avoid this exception:
>>> max_connections: Union[str, int] = getenv("MAX_CONNECTIONS", default=100)You can pass any value as the default argument, which prevents the exception!
However, as you can see, max_connections might be str, which could be problematic.
To avoid this, getenv() provides a way to cast the result:
>>> max_connections: int = getenv("MAX_CONNECTIONS", into=int)Now max_connections will be of type int.
> pip install git+https://github.com/stefanlight8/dotenv- Python 3.6<