two lists with identical entries get order
from collections import defaultdict, deque
indexes = defaultdict(deque)
for i, x in enumerate(lst2):
indexes[x].append(i)
ids = [indexes[x].popleft() for x in lst1]
two lists with identical entries get order
from collections import defaultdict, deque
indexes = defaultdict(deque)
for i, x in enumerate(lst2):
indexes[x].append(i)
ids = [indexes[x].popleft() for x in lst1]
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