通过多个循环在Python中创建字典

I know the syntax in the following is off, but I'm having trouble figuring out how this should be written. What I'm trying to do is take the list "list" and create a dictionary where the keys are the combination of each words with each other word that isn't itself and the value for every key is 0. Here's my broken code:I know the syntax in the following is off, but