--------------------------------------------------------------------------- ModuleNotFoundError Traceback (most recent call last) Cell In[5], line 1 ----> 1 import pymc as pm 2 pm.__version__ File /lib/python3.12/site-packages/pymc/__init__.py:72 70 from pymc.pytensorf import * 71 from pymc.sampling import * ---> 72 from pymc.smc import * 73 from pymc.stats import * 74 from pymc.step_methods import * File /lib/python3.12/site-packages/pymc/smc/__init__.py:16 1 # Copyright 2024 The PyMC Developers 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); (...) 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 15 from pymc.smc.kernels import IMH, MH ---> 16 from pymc.smc.sampling import sample_smc 18 __all__ = ("sample_smc",) File /lib/python3.12/site-packages/pymc/smc/sampling.py:21 18 import warnings 20 from collections import defaultdict ---> 21 from concurrent.futures import ProcessPoolExecutor, wait 22 from typing import Any 24 import cloudpickle File /lib/python312.zip/concurrent/futures/__init__.py:44, in __getattr__(name) 41 global ProcessPoolExecutor, ThreadPoolExecutor 43 if name == 'ProcessPoolExecutor': ---> 44 from .process import ProcessPoolExecutor as pe 45 ProcessPoolExecutor = pe 46 return pe File /lib/python312.zip/concurrent/futures/process.py:55 52 # This import is required to load the multiprocessing.connection submodule 53 # so that it can be accessed later as `mp.connection` 54 import multiprocessing.connection ---> 55 from multiprocessing.queues import Queue 56 import threading 57 import weakref File /lib/python312.zip/multiprocessing/queues.py:23 19 import errno 21 from queue import Empty, Full ---> 23 import _multiprocessing 25 from . import connection 26 from . import context ModuleNotFoundError: No module named '_multiprocessing'