Configuration data determines how an application and its services are set up and run. Separating it from application code makes development, staging, and production easier to maintain. section 7.6 section 7.6.1
Use distinct configuration for each environment:
- Development can enable debugging and expose additional application information. section 7.6.1
- Staging gives a team an environment for testing before deployment. section 7.6.1
- Production removes debug information and restricts access to the intended public feature set. section 7.6.1
TOML files provide human-readable configuration with typed values, including Boolean values and lists. Sections such as default, development, and production let the active environment select appropriate settings while sharing inherited defaults. section 7.7.1
Configuring a Flask application
Dynaconf loads TOML configuration into Flask. A default section can hold shared values such as SECRET_KEY, while development enables the Flask Debug Toolbar and production disables debugging. Set FLASK_ENV before running the application so the matching section is used. Keep the secret value private and generate it with Python’s secrets module rather than revealing it in shared code. section 7.7.1
[default] #1 [development] #2 flask_debug = true #3 extensions = ["flask_debugtoolbar:DebugToolbarExtension"] #4 debug_tb_enabled = true #4 [production] #4 flask_debug = false #5
Inspect a representative settings.toml file showing shared defaults, development-only debugging, extensions, and production settings. section 7.7.1
import os
import sys
from flask import Flask
from dynaconf import FlaskDynaconf #1
def create_app():
app = Flask(__name__)
dynaconf = FlaskDynaconf(extensions_list=True) #2
with app.app_context():
os.environ[
"ROOT_PATH_FOR_DYNACONF"
] = app.root_path #3
dynaconf.init_app(app) #4
app.config["SECRET_KEY"] =
bytearray(app.config["SECRET_KEY"], "UTF-8") #5
from . import intro
app.register_blueprint(intro.intro_bp)
return app
Inspect the Flask application factory wiring that initializes FlaskDynaconf and applies the configured secret key. section 7.7.1
