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fix for python 3.10 #14

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Jun 17, 2023
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7 changes: 6 additions & 1 deletion pufferlib/emulation.py
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,12 @@
import itertools
import numpy as np
from contextlib import nullcontext
from collections import defaultdict, OrderedDict, Mapping
try:
from collections import defaultdict, OrderedDict, Mapping
except ImportError:
# API changed in python 3.10
from collections import defaultdict, OrderedDict
from collections.abc import Mapping

import gym
from pettingzoo.utils.env import ParallelEnv
Expand Down