how to pass variable in url to python flask

Certainly! Passing variables in the URL to a Python Flask application is a common practice, and it's often done using route parameters. Here's a step-by-step tutorial with code examples to demonstrate how you can achieve this:
If you haven't installed Flask yet, you can do so using pip:
Initialize the Flask app:
Create a route that includes a variable. In Flask, you can use angle brackets to define route parameters. These parameters will capture values from the URL:
In this example, the route /user/username expects a variable called username in the URL. The function show_user_profile then takes this variable as an argument.
Save the file.
You can define routes with multiple variables by adding more placeholders in the route URL and corresponding parameters in the function:
Now, you can access variables like /user/John/123, and the show_user_profile_with_id function will receive both username and user_id as parameters.
That's it! You've successfully created a Flask application that accepts variables in the URL. This is a fundamental concept in web development and can be used for building dynamic and parameterized routes in your applications.
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