Alexander MrKich
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| import threading | |
| import signal | |
| class SignalExitter: | |
| def __init__(self): | |
| self.event = threading.Event() | |
| signal.signal(signal.SIGINT, self._exit_by_signal) | |
| signal.signal(signal.SIGTERM, self._exit_by_signal) |
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| def bfs( start, end, graph ): | |
| todo = [(start, [start])] | |
| while len( todo ): | |
| node, path = todo.pop( 0 ) | |
| for next_node in graph[node]: | |
| if next_node in path: | |
| continue | |
| elif next_node == end: | |
| yield path + [next_node] | |
| else: |