Flask has built in objects such as a request object and a session object, most of which will be used in this article where we will walk you through the process of creating a simple blog web app using flask and a sqlite3 database. Lab environment: Before getting started I would like to...
Create a Dockerfile in the ‘/app’ directory of your project folder. In order for this tutorial to work, we’ll also create a simple Flask app in an ‘app.py’ file within the same directory: from flask import Flask app = Flask(__name__) @app.route(‘/’) def my_app()...
app.config.from_mapping(test_config) # ensure the instance folder exists try: os.makedirs(app.instance_path) except OSError: pass # a simple page that says hello @app.route('/hello') def hello(): return 'Hello, World!' return app export FLASK_APP=flaskr export FLASK_ENV=development fl...
官方代码如下 mkdir flaskr flaskr/__init__.py import os from flask import Flask def create_app(test_config=None): # create and configure the app app = Flask(__name__, instance_relative_config=True) app.config.from_mapping( SECRET_KEY='dev', DATABASE=os.path.join(app.instance_path,...
flask 源码专题(一):app.run()的背后 当我们用Flask写好一个app后, 运行app.run()表示监听指定的端口, 对收到的request运行app生成response并返回. 现在分析一下, 运行app.run()后具体发生了什么事情 Flask定义的run方法如下: defrun(self, host=None, port=None, debug=None, **options):"""...
Tutorial to create a simple Flask REST API. Contribute to Flask-Examples/Tutorial-simple-flask-api development by creating an account on GitHub.
To create a simple API using Flask, we first need to verify that Python and pip are installed by running the following commands: $ python --versionPython 3.10.4 $ pip --versionpip 22.0.4 from /usr/lib/python3/dist-packages/pip (python 3.10) ...
For example, an app could create or destroy Linodes, manage a NodeBalancer, or alter a domain. This guide will show you how to create a simple OAuth application using Flask and the Linode Python API library. This app allows a user to log in with their Linode account and create a ...
Serving a Flask app is as simple as typingpython app.pyin a terminal. In this web app, button presses trigger an async command on the Raspberry Pi Zero. This command sends an on-off keying (OOK) signal at the fan’s receiving frequency viarpiTX, which turns a GPIO pin 7 on/off. Thi...
Follow guided steps to use Visual Studio and the Flask framework to build a web application in Python, add a code file, and run the app.