尝试导入precision_score时出现导入错误

Question

在我的ipython笔记本中，我执行了命令

from sklearn.metrics import accuracy_score

然后我收到此导入错误。

ModuleNotFoundError: No module named 'multiprocessing'

因此，我尝试使用pip3安装多处理程序。我执行了命令

pip3 install multiprocessing

然后我又遇到另一个错误

 SyntaxError: Missing parentheses in call to 'print'. Did you mean print('Macros:')?

我想知道如何解决这个问题？

第一个命令的整个错误日志

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-4-6b5e50a91908> in <module>
----> 1 from sklearn.metrics import accuracy_score

~/.local/lib/python3.7/site-packages/sklearn/__init__.py in <module>
     80     from . import _distributor_init  # noqa: F401
     81     from . import __check_build  # noqa: F401
---> 82     from .base import clone
     83     from .utils._show_versions import show_versions
     84 

~/.local/lib/python3.7/site-packages/sklearn/base.py in <module>
     18 
     19 from . import __version__
---> 20 from .utils import _IS_32BIT
     21 
     22 _DEFAULT_TAGS = {

~/.local/lib/python3.7/site-packages/sklearn/utils/__init__.py in <module>
     18 import warnings
     19 import numpy as np
---> 20 from scipy.sparse import issparse
     21 
     22 from .murmurhash import murmurhash3_32

~/.local/lib/python3.7/site-packages/scipy/sparse/__init__.py in <module>
    228 
    229 from .base import *
--> 230 from .csr import *
    231 from .csc import *
    232 from .lil import *

~/.local/lib/python3.7/site-packages/scipy/sparse/csr.py in <module>
     15 from .sputils import upcast, get_index_dtype
     16 
---> 17 from .compressed import _cs_matrix
     18 
     19 

~/.local/lib/python3.7/site-packages/scipy/sparse/compressed.py in <module>
      9 import numpy as np
     10 from scipy._lib.six import zip as izip, xrange
---> 11 from scipy._lib._util import _prune_array
     12 
     13 from .base import spmatrix, isspmatrix, SparseEfficiencyWarning

~/.local/lib/python3.7/site-packages/scipy/_lib/_util.py in <module>
      7 import numbers
      8 from collections import namedtuple
----> 9 from multiprocessing import Pool
     10 import inspect
     11 

ModuleNotFoundError: No module named 'multiprocessing'

第二条命令是

Collecting multiprocessing
  Downloading multiprocessing-2.6.2.1.tar.gz (108 kB)
     |████████████████████████████████| 108 kB 225 kB/s 
    ERROR: Command errored out with exit status 1:
     command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-2qe70bj0/multiprocessing/setup.py'"'"'; __file__='"'"'/tmp/pip-install-2qe70bj0/multiprocessing/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-2qe70bj0/multiprocessing/pip-egg-info
         cwd: /tmp/pip-install-2qe70bj0/multiprocessing/
    Complete output (6 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-2qe70bj0/multiprocessing/setup.py", line 94
        print 'Macros:'
              ^
    SyntaxError: Missing parentheses in call to 'print'. Did you mean print('Macros:')?
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
nani@nani:~$ pip3 install --upgrade numpy

如何解决该错误？