include in flask
To include Flask in your project, follow these steps:
- Install Flask: Open your command prompt or terminal and use the following command to install Flask:
pip install flask
This will download and install Flask on your system.
- Import Flask: In your Python script, import the Flask module by adding the following line at the beginning:
from flask import Flask
This imports the Flask class that we will use to create our Flask application.
- Create an instance of Flask: After importing Flask, create an instance of the Flask class by adding the following line:
app = Flask(__name__)
The __name__
parameter is a special Python variable that represents the name of the current module. It is used by Flask to locate resources such as templates and static files.
- Define routes: Routes define the URLs that the application will respond to. To define a route, use the
@app.route()
decorator followed by the URL pattern. For example:
@app.route('/')
def home():
return 'Hello, World!'
In this example, the home
function is associated with the root URL ("/"). When a user visits the root URL, the function will be executed and the string "Hello, World!" will be returned.
- Run the application: To run the Flask application, add the following lines at the end of your script:
if __name__ == '__main__':
app.run()
This block of code ensures that the application is only run if the script is executed directly, not when it is imported as a module.
That's it! You have successfully included Flask in your project. You can now start building your web application using the Flask framework.