Magic Config

A simple library for easy handling of .env files and environment variables configurations.

This library is a class for working with configurations. The class is implemented as a singleton, which allows you to always have exactly one instance of the same data registry everywhere.

The configuration data itself is taken from the .env file or from environment variables.

Installation

pip install magic-config

Upgrade

pip install --upgrade magic-config

Pypi url: https://pypi.org/project/magic-config/

Example:

DEBUG=1 myapp.py

My app script:

from magic_config import Config

# You can access to variables as property of class object
if Config.DEBUG:
  ...

# You can access to variables in lower case (and camel case, and other case)
if Config.debug:
  ...

# You can access to variables as key of dict object
if Config["debug"]:
  ...

Configure custom variables

# You can add variables to the object

# as dict
MagicConfig({
    "Number": 456,
    "Boolean": True
})

# as named arguments
MagicConfig(
    Number=456,
    Boolean=True
)

Prepared autogenerators for DB URIs

For example in .env file you can write only this data:

MONGO_HOST="127.0.0.1"
MONGO_USER="user"
MONGO_PWD="*****"
MONGO_DB="test"
MONGO_PORT=27017

and in code you can call the MONGO_URL

from magic_config import Config

Config.MONGO_URL

# output:
# mongodb://user:passwd@127.0.0.1:27017/test?authSource=admin&tls=false

Set type casting for environment variables

For example if you create in source root magic.config file and write:

DEBUG="bool"
DEBUG_STEP="bool"
DEBUG_USER_ID="int"

then you run

DEBUG=1 DEBUG_STEP=1 DEBUG_USER_ID=1 DEBUG_USER_ID=10011888 python server.py

Config.DEBUG # True
Config.DEBUG_STEP # True
Config.DEBUG_USER_ID # int(10011888)

Custom file path

Instead default .env file in source root you can configure path to .env file:

# for example

env_file = os.path.realpath(os.path.dirname(os.path.realpath(__file__)) + "/../my.env")
MagicConfig(env_file=env_file)