Python graphs adjacency matrix to adjacency list

I've been playing with it, and here's the code I came with (posting it here so that it doesn't get lost afterwards, as it usually happens.

matrix = [
[0,1,0],
[1,0,1],
[0,1,0]]

def adjmatrix_to_adjlist(graph_as_matrix=matrix):
 adj_list = {}
 for (index,nodes) in enumerate(graph_as_matrix):
  adj_list[index+1]=([verteces+1 for verteces in range(len(nodes)) if nodes[verteces]==1])
 return adj_list

graph_as_list = adjmatrix_to_adjlist()