envvarconf
Safe app configuration from environment variables without extra dependencies
Install
pip install envvarconf
Example
Define our settings
from envvarconf import BaseSettings
from envvarconf.loaders import environ
class Settings(BaseSettings):
SENTRY_DSN: str
LOGGING_LEVEL: str = 'debug'
HOST: str = "aaaakehgeiuhgiweurhiuerhf"*200
PORT: int
if __name__ == "__main__":
settings = Settings()
settings.load(loader=environ.Loader())
print("OK!")
print(settings)Run application without any environment definition
$ python3 main.py
There is errors in settings
* SENTRY_DSN is not defined
* PORT is not defined
Application settings:
SENTRY_DSN: <class 'str'> = NOT DEFINED!
LOGGING_LEVEL: <class 'str'> = debug
HOST: <class 'str'> = aaaakehgeiuhgi...
PORT: <class 'int'> = NOT DEFINED!Define HOST variable:
$ HOST=1 python3 main.py
There is errors in settings
* SENTRY_DSN is not defined
* PORT is not defined
Application settings:
SENTRY_DSN: <class 'str'> = NOT DEFINED!
LOGGING_LEVEL: <class 'str'> = debug
HOST: <class 'str'> = 1
PORT: <class 'int'> = NOT DEFINED!
Define all variables
$ HOST=1 PORT=2 SENTRY_DSN=3 python3 main.py
OK!
<Settings SENTRY_DSN=3, LOGGING_LEVEL=debug, HOST=1, PORT=2>
