from collections import deque
def person_is_seller(name):
return name[-1] == 'm'
def search(name):
search_queue = deque()
search_queue += graph[name]
searched = []
while search_queue:
person = search_queue.popleft()
if not person in searched:
if person_is_seller(person):
print(person+"is a mango seller")
return True
else:
search_queue += graph["person"]
searched.append(person)
return False
search("you")
Ошибка
File "queue.py", line 6, in search
search_queue += graph[name]
NameError: имя "graph" не используется