import heapq
from itertools import count

sequence = count()
pending = []
for priority, task in [(2, "check shed"), (1, "water gate"), (1, "water pond")]:
    heapq.heappush(pending, (priority, next(sequence), {"task": task}))
result = []
while pending:
    _, _, payload = heapq.heappop(pending)
    result.append(payload["task"])
print(result)