在新安装的 Windows 10 机器上，我安装了最新的 64 位版本的 anaconda。现在，当我尝试将模块导入 ipython 时，出现错误。下面重现了一些示例错误。
我是 Python 和编程的新手，所以希望得到一些帮助。这是一台全新的联想笔记本电脑，因此没有任何 Python 版本冲突等的余地（因为之前没有安装任何东西）。
In [1]: import sklearn
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-b7c74cbf5af0> in <module>
----> 1 import sklearn
C:\Software\anaconda3\lib\site-packages\sklearn\__init__.py in <module>
74 else:
75 from . import __check_build
---> 76 from .base import clone
77 from .utils._show_versions import show_versions
78
C:\Software\anaconda3\lib\site-packages\sklearn\base.py in <module>
11 import re
12
---> 13 import numpy as np
14
15 from . import __version__
C:\Software\anaconda3\lib\site-packages\numpy\__init__.py in <module>
138
139 # Allow distributors to run custom init code
--> 140 from . import _distributor_init
141
142 from . import core
C:\Software\anaconda3\lib\site-packages\numpy\_distributor_init.py in <module>
32
33 with RTLD_for_MKL():
---> 34 from . import _mklinit
35
36 del RTLD_for_MKL
ImportError: DLL load failed: The specified module could not be found.
In [2]: import matplotlib.pyplot as plt
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-2-a0d2faabd9e9> in <module>
----> 1 import matplotlib.pyplot as plt
C:\Software\anaconda3\lib\site-packages\matplotlib\__init__.py in <module>
136 # cbook must import matplotlib only within function
137 # definitions, so it is safe to import from it here.
--> 138 from . import cbook, rcsetup
139 from matplotlib.cbook import (
140 MatplotlibDeprecationWarning, dedent, get_label, sanitize_sequence)
C:\Software\anaconda3\lib\site-packages\matplotlib\cbook\__init__.py in <module>
29 from weakref import WeakMethod
30
---> 31 import numpy as np
32
33 import matplotlib
C:\Software\anaconda3\lib\site-packages\numpy\__init__.py in <module>
138
139 # Allow distributors to run custom init code
--> 140 from . import _distributor_init
141
142 from . import core
C:\Software\anaconda3\lib\site-packages\numpy\_distributor_init.py in <module>
32
33 with RTLD_for_MKL():
---> 34 from . import _mklinit
35
36 del RTLD_for_MKL
ImportError: DLL load failed: The specified module could not be found.
In [3]: import pystan
---------------------------------------------------------------------------
ModuleNotFoundError Traceback (most recent call last)
<ipython-input-3-ca8618bb8e4a> in <module>
----> 1 import pystan
ModuleNotFoundError: No module named 'pystan'
In [4]:
经过大量的谷歌搜索，我发现了一些涉及一些密切相关问题的网站（例如https://github.com/stan-dev/pystan/issues/520）。碰巧的是，需要在 Windows 路径中添加一些 anaconda 目录。我将anaconda/Library/bin,添加anaconda/Scripts到路径中。现在一切都按预期工作。
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