python - 导入 scipy.stats 时，获取 'ImportError: DLL load failed: The specified procedure could not be found'

Question

我无法导入 scipy.stats 并收到以下错误，但不知何故

import scipy as sp

仍然可以正常工作。

其他库，如 numpy、pandas 可以毫无问题地导入。

我已经尝试在 Anaconda 中重新安装 scipy 1.2.1，降级到 scipy 1.2.0，但我仍然遇到找不到 ImportError 指定程序的问题。

我使用由 Anaconda 在 atom 文本编辑器中安装的 python 3.7.3 和 scipy 1.2.1。

---------------------------------------------------------------------------
    ImportError                               Traceback (most recent call last)
<ipython-input-1-dcc8e03bb4b3> in <module>
----> 1 from scipy import stats

~\Anaconda3\lib\site-packages\scipy\stats\__init__.py in <module>
    365 from __future__ import division, print_function, absolute_import
    366 
--> 367 from .stats import *
    368 from .distributions import *
    369 from .morestats import *

~\Anaconda3\lib\site-packages\scipy\stats\stats.py in <module>
    171 from scipy._lib._util import _lazywhere
    172 import scipy.special as special
--> 173 from . import distributions
    174 from . import mstats_basic
    175 from ._stats_mstats_common import _find_repeats, linregress, theilslopes, siegelslopes

~\Anaconda3\lib\site-packages\scipy\stats\distributions.py in <module>
      8 from __future__ import division, print_function, absolute_import
      9 
---> 10 from ._distn_infrastructure import (entropy, rv_discrete, rv_continuous,
     11                                     rv_frozen)
     12 

~\Anaconda3\lib\site-packages\scipy\stats\_distn_infrastructure.py in <module>
     22 
     23 # for root finding for discrete distribution ppf, and max likelihood estimation
---> 24 from scipy import optimize
     25 
     26 # for functions of continuous distributions (e.g. moments, entropy, cdf)

~\Anaconda3\lib\site-packages\scipy\optimize\__init__.py in <module>
    385 
    386 from .optimize import *
--> 387 from ._minimize import *
    388 from ._root import *
    389 from ._root_scalar import *

~\Anaconda3\lib\site-packages\scipy\optimize\_minimize.py in <module>
     28 from ._trustregion_krylov import _minimize_trust_krylov
     29 from ._trustregion_exact import _minimize_trustregion_exact
---> 30 from ._trustregion_constr import _minimize_trustregion_constr
     31 
     32 # constrained minimization

~\Anaconda3\lib\site-packages\scipy\optimize\_trustregion_constr\__init__.py in <module>
      2 
      3 
----> 4 from .minimize_trustregion_constr import _minimize_trustregion_constr
      5 
      6 __all__ = ['_minimize_trustregion_constr']

~\Anaconda3\lib\site-packages\scipy\optimize\_trustregion_constr\minimize_trustregion_constr.py in <module>
      2 import time
      3 import numpy as np
----> 4 from scipy.sparse.linalg import LinearOperator
      5 from .._differentiable_functions import VectorFunction
      6 from .._constraints import (

~\Anaconda3\lib\site-packages\scipy\sparse\linalg\__init__.py in <module>
    115 from .dsolve import *
    116 from .interface import *
--> 117 from .eigen import *
    118 from .matfuncs import *
    119 from ._onenormest import *

~\Anaconda3\lib\site-packages\scipy\sparse\linalg\eigen\__init__.py in <module>
      9 from __future__ import division, print_function, absolute_import
     10 
---> 11 from .arpack import *
     12 from .lobpcg import *
     13 

~\Anaconda3\lib\site-packages\scipy\sparse\linalg\eigen\arpack\__init__.py in <module>
     20 from __future__ import division, print_function, absolute_import
     21 
---> 22 from .arpack import *

~\Anaconda3\lib\site-packages\scipy\sparse\linalg\eigen\arpack\arpack.py in <module>
     43 __all__ = ['eigs', 'eigsh', 'svds', 'ArpackError', 'ArpackNoConvergence']
     44 
---> 45 from . import _arpack
     46 import numpy as np
     47 import warnings

ImportError: DLL load failed: The specified procedure could not be foundใ

Answer 1

谷歌搜索一段时间后，我遇到了这个:
https://github.com/conda/conda/issues/6396

因为我很绝望，所以我尝试了。它奏效了!
我通过删除 Anaconda 安装的 scipy 和
使用python预先安装的pip来安装scipy。

它以某种方式解决了问题。
会把这个答案留给任何不幸的灵魂。