Flask comes with a development server, and the development server has a Debug Mode. The Debug mode can be set to true when we call the run method of the Flask Application object.
Example :
from flask import Flask
app = Flask(__name__)
app.run(host='127.0.0.1', debug=True)
However, we need to disable the debug mode before deploying the application on production to avoid full stack trace display in the browser. Such a stack trace can reveal a lot of essential details and is prone to exploitation by bad actors.
Further, we can make use of the Flask-DebugToolbar extension for easy debugging in the browser. We can also make use of Python’s pdb module and the debugging statement import pdb;pdb.set_trace() to support the debugging process.
