PYTHON

python create environment variable

import os
os.environ['variable_name'] = 'variable_value'

python env variable

import os
# Preferred - no KeyError exceptions even if no default value given
os.getenv('KEY', 'default value')
# Alternate - NOTE: KeyError exception If a key is NOT present
os.environ['KEY']
# To avoid KeyError exceptions when using os.environ :
os.environ.get('KEY_THAT_MIGHT_EXIST') # Returns `None` if key doesn't exist
os.environ.get('KEY_THAT_MIGHT_EXIST', default_value) # Returns `default_value` if key doesn't exist

creating environment variable in python

DEBUG = config('DEBUG', cast=bool)
EMAIL_PORT = config('EMAIL_PORT', cast=int)

python environment variable

>>> from dotenv import load_dotenv
>>> load_dotenv()

creating environment variable in python

SECRET_KEY=3izb^ryglj(bvrjb2_y1fZvcnbky#358_l6-nn#i8fkug4mmz!
DEBUG=True
DB_NAME=HELLO_DJANGO
DB_USER=U_HELLO
DB_PASSWORD=hA8(scA@!fg3*sc&xaGh&6%-l<._&xCf
DB_HOST=127.0.0.1

creating environment variable in python

from decouple import config

creating environment variable in python

ALLOWED_HOSTS=.localhost, .herokuapp.com

creating environment variable in python

DEBUG = config('DEBUG', default=True, cast=bool)

creating environment variable in python

ALLOWED_HOSTS = config('ALLOWED_HOSTS', cast=lambda v: [s.strip() for s in v.split(',')])

creating environment variable in python

DEBUG=False python manage.py

creating environment variable in python

from decouple import config, Csv

ALLOWED_HOSTS = config('ALLOWED_HOSTS', cast=Csv())