Why do I get so much complaint from pylance on Flask?

[FlysonBot]

I'm new to flask and is still learning how to use it. I found this simple example and pasted it in VS Code with Type Check in Strict mode. I starts to get bombarded with type issue in almost every single line of code I use flask. What is going on? How do I fix that?

I'm using flask 3.1.0 and I have types-flask 1.1.6 installed.

It seems the fundamental issue is that Pylance doesn't know what jsonify will return, and it doesn't konw about the json attribute of request. Is there a way to fix this? The code itself seems to be running correctly. I want to avoid this issue while using strict type checking.

[FlysonBot]

I realized that types-flask is for old version only. I uninstalled it and now the complaint goes down to just the line request.json. I still got type of json is unkown.

[ThiefMaster]

try using request.get_json(), iirc we deprecated the property some time ago

[FlysonBot]

Thank you very much for the quick response! I tried get_json() and I got this instead:

The app seems to run correctly though. Any idea why that is happening?

[FlysonBot]

Today the error suddently disappeared. I think maybe something wasn't configured correctly yesterday. Thank you very much for your help!