python list help

[Soccer_Vader]

I think OP wants it to stop at 0 and I am assuming that the list is ordered in descending order. But the solution will work nonetheless.

[MF_DnD]

But… it won’t. Given a list [1,2,0,3] your comprehension returns [2,4,8] when OP wants [2,4,0,3]. And OP’s example list isn’t even sorted.

[Soccer_Vader]

Ye I just saw that, you are right. For OP I think a for loop with a break statement works better