Alright, first things first, we need to get our libraries in order. For this guide, you'll need Flask, PyJWT, and Supabase-Py.

Just run this command to install them:

pip install flask pyjwt supabase-py

Now that we've got our libraries, let's set up a basic Flask app. Create a new Flask application with the following code:

from flask import Flask
app = Flask(__name__)

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

if __name__ == "__main__":
    app.run(debug=True)

Next, head over to the Supabase dashboard and create a new project. Once that's done, go to the “API” tab to grab your Supabase URL and Anon Key. You'll need these to connect to Supabase’s Postgre database from your Flask app.

In the main file of your Flask app, import and set up the Supabase client using the URL and Anon Key you got from your Supabase project.

from supabase_py import create_client

supabase_url = 'your-supabase-url'
supabase_key = 'your-supabase-anon-key'
supabase = create_client(supabase_url, supabase_key)

Now that our Supabase client is ready, we can start interacting with the database. For example, to SELECT data from a specific table, use this:

response = supabase.table('your-table').select().execute()

Just remember to replace 'your-table' with the actual name of the table you want to access.

To make a request to Supabase from your Flask routes, include the request in a route function. Here's an example:

@app.route('/data')
def get_data():
    response = supabase.table('your-table').select().execute()
    return response.body

This route will respond with the data from 'your-table' in your Supabase database.

Keep in mind that each response from Supabase through execute() has properties like status_code, body, and headers. In this case, we're using body to get the data.

Here's a quick recap of the steps to use Supabase with Flask:

1. Install and set up the necessary libraries.
2. Get your Supabase API credentials.
3. Configure the Supabase client in your Flask app.
4. Interact with your Supabase database.
5. Make requests to Supabase from your Flask routes.

This should give you a solid start on using Supabase with Flask. Feel free to explore more features and capabilities that Supabase offers, like real-time subscriptions, user authentication, and more.