NBA-Shot-Charts | Create NBA shot charts using data | Data Visualization library

When imported with import json, the name json is referring to the JSON module of the Python standard library. You cannot use it as a regular variable name. If you rename your variable to something else such as response_json, this part of your code will work.

Regarding the rest of the code, the page https://stats.nba.com/events/ doesn't return any JSON text, it is a regular web page with images, menus, a video player, etc... If you want to access the API that returns the shots in JSON format, you will have to use the https://stats.nba.com/stats/shotchartdetail (with the right query string). This API endpoint is mentioned in the tutorial, in the "Chrome XHR tab and resulting json linked by url" image.