当我运行 flask 应用时调试器 PIN 是什么 python

Question

• Debugger is active!
• Debugger PIN: 620-122-212

I see this when I run the flask app and i'm trying to understand where it will get used?

Please let me know!

Answer 1

This is a security code for the debugger. Its purpose is to make access to the debugger more difficult for an attacker in a production environment. More details here

Answer 2

This is an additional security measure provided by Werkzeug (which is one of the dependencies for Flask ) to prevent the debugger from being accessible without the knowledge of the PIN . You can use the debugger pin in the browser to launch the interactive debugger.

Please note you should never be using DEBUG mode in Production anyways because the stack trace of error can potentially reveal multiple aspects of your code.

The Debugger PIN is a just an added layer of security in case you inadvertently leave the Debug mode on in an Production application to make it difficult for the attacker to access the debugger .

Answer 3

OP asked

i'm trying to understand where it will get used?

and commented on the approved answer that he still wondering where to use the PIN to debug the program without adding a logger.

To any new viewers wondering where to access the debugger and use the PIN, it is accessible in the flask application at /console

A window requesting the PIN will pop up:

You can enter your PIN there, click Confirm Pin and access the interactive console of your flask application. Please remember to turn OFF debug mode when deploying to production.