How to connect python to flask

How do I connect python to flask

To connect Python code to Flask, you can define a Flask application object and write functions that handle HTTP requests. Here’s an example of how to get started with connecting Python to Flask:

  1. Install Flask: If you haven’t already, you can install Flask by running the following command in your terminal or command prompt:Copy codepip install flask
  2. Import Flask: In your Python code, you’ll need to import the Flask module:pythonCopy codefrom flask import Flask
  3. Define your Flask app: Create a Flask app object by calling the Flask constructor:scssCopy codeapp = Flask(__name__) The __name__ parameter is used to determine the root path of the application.
  4. Define a route: Use the @app.route() decorator to define a function that handles HTTP requests to a specific URL:pythonCopy code@app.route('/') def hello_world(): return 'Hello, World!' In this example, we define a route that handles HTTP GET requests to the root URL (“/”). The function returns a string that will be sent back to the client as the response.
  5. Run the app: Finally, you can run your Flask app by calling the run() method on the app object:markdownCopy codeif __name__ == '__main__': app.run() This starts a development server that listens for incoming HTTP requests on port 5000 by default.

Here’s an example of what your code might look like when you put it all together:

pythonCopy codefrom flask import Flask

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello, World!'

if __name__ == '__main__':
    app.run()

When you run this code and navigate to http://localhost:5000/ in your web browser, you should see the text “Hello, World!” displayed on the page.

This is just a simple example, but Flask is a powerful framework that can be used to build more complex web applications with database integration, authentication, and more.

Zenia
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