So you made a for loop, and you are appending things to the unvisted list.
But what you are supposed to add to the list, is each node that you are looping through in the graph. Nothice how you wrote for node in graph: the node part is each node in the current iteration. That is what you have to add.
It is great that you solved the challenge, but instead of posting your full working solution, it is best to stay focused on answering the original poster’s question(s) and help guide them with hints and suggestions to solve their own issues with the challenge.
We are trying to cut back on the number of spoiler solutions found on the forum and instead focus on helping other campers with their questions and definitely not posting full working solutions.