### Tell us what’s happening:

I am very frustrated on this step no idea where to begin on the reasoning behind why the code wont go through seen numerous posts which explained very little about WHY it wont work. I get this message every time. You should create a nested `if`

statements that checks if `paths[node][-1]`

is equal to `node`

. Don’t forget to use `pass`

.

### Your code so far

```
my_graph = {
'A': [('B', 3), ('D', 1)],
'B': [('A', 3), ('C', 4)],
'C': [('B', 4), ('D', 7)],
'D': [('A', 1), ('C', 7)]
}
def shortest_path(graph, start):
unvisited = list(graph)
distances = {node: 0 if node == start else float('inf') for node in graph}
paths = {node: [] for node in graph}
paths[start].append(start)
# User Editable Region
while unvisited:
current = min(unvisited, key=distances.get)
for node, distance in graph[current]:
if distance + distances[current] < distances[node]:
distances[node] = distance + distances[current]
if paths[node] !=[] and paths[node][-1] == node:
pass
# User Editable Region
print(f'Unvisited: {unvisited}\nDistances: {distances}\nPaths: {paths}')
#shortest_path(my_graph, 'A')
```

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### Challenge Information:

Learn Algorithm Design by Building a Shortest Path Algorithm - Step 45