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Project Description

Easily set Flask settings from environment variables.

The reason for using flask-env is to be able to follow the 12-factor app suggestions for configuring your application.

With flask-env you can define your default configuration options in code and very easily override via environment variables.

Installation

pip install Flask-Env

Usage

With flask-env you will define your configuration as an object and load it into your Flask application via app.config.from_object method.

Python 2

from flask import Flask
from flask_env import MetaFlaskEnv


class Configuration(object):
    __metaclass__ = MetaFlaskEnv

    DEBUG = False
    PORT = 5000


app = Flask(__name__)
app.config.from_object(Configuration)

Python 3

from flask import Flask
from flask_env import MetaFlaskEnv


class Configuration(metaclass=MetaFlaskEnv):
    DEBUG = False
    PORT = 5000


app = Flask(__name__)
app.config.from_object(Configuration)

Overriding environment variables

# Export environment variable for shell session
export DEBUG=true

# Set explicitly for a specific command execution
PORT=8000 python app.py

Configuring flask-env

flask-env offers two configuration options to determine how/which environment variables are loaded.

ENV_PREFIX
Only consider environment variables that start with this prefix. The prefix will be removed from the environment variable name when setting in the configuration. (default: '', example: ENV_PREFIX = 'MYAPP_')

Setting configuration values

You can set the flask-env configuration settings directly on your Flask configuration object.

from flask_env import MetaFlaskEnv


class Configuration(metaclass=MetaFlaskEnv):
    ENV_PREFIX = 'MYAPP_'
Release History

Release History

1.0.1

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1.0.0

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
Flask-Env-1.0.1.tar.gz (4.4 kB) Copy SHA256 Checksum SHA256 Source Aug 7, 2016

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