Python:从 cygwin 运行有效，而从 PyCharm 运行无效

问题描述

我可以成功运行一个使用的python脚本

I can successfully run a python script that uses

from sklearn.cluster import DBSCAN

来自 64 位 cygwin 终端提示，它使用 64 位构建的 python 2.7.

from the 64 bit cygwin terminal prompt which uses a 64bit build of python 2.7.

当我使用 -vv 解释器选项从 64 位和 32 位 pycharm 运行相同的命令时，我得到(前 2 行是详细输出):

When I run the same from both 64 bit and 32 bit pycharm with -vv interpreter options, I get (the first 2 lines are the verbose output):

import numpy.linalg.linalg # precompiled from /usr/lib/python2.7/site-packages/numpy/linalg/linalg.pyc
dlopen("/usr/lib/python2.7/site-packages/numpy/linalg/lapack_lite.dll", 2);
Traceback (most recent call last):
  File "C:/Users/mack0242/Dropbox/PhD/scripts/cluster.py", line 5, in <module>
    from sklearn.cluster import DBSCAN
  File "/usr/lib/python2.7/site-packages/sklearn/__init__.py", line 57, in <module>
    from .base import clone
  File "/usr/lib/python2.7/site-packages/sklearn/base.py", line 9, in <module>
    import numpy as np
  File "/usr/lib/python2.7/site-packages/numpy/__init__.py", line 170, in <module>
    from . import add_newdocs
  File "/usr/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "/usr/lib/python2.7/site-packages/numpy/lib/__init__.py", line 18, in <module>
    from .polynomial import *
  File "/usr/lib/python2.7/site-packages/numpy/lib/polynomial.py", line 19, in <module>
    from numpy.linalg import eigvals, lstsq, inv
  File "/usr/lib/python2.7/site-packages/numpy/linalg/__init__.py", line 51, in <module>
    from .linalg import *
  File "/usr/lib/python2.7/site-packages/numpy/linalg/linalg.py", line 29, in <module>
    from numpy.linalg import lapack_lite, _umath_linalg
ImportError: No such file or directory

我已经仔细检查了文件:

I have double checked and the file:

/usr/lib/python2.7/site-packages/numpy/linalg/lapack_lite.dll

存在并且是 64 位.我已经在 cygwin 终端上从 pip 成功安装了 numpy、scipy 和 sklearn.

exists and is 64 bits. I have successfully installed numpy,scipy and sklearn from pip on the cygwin terminal.

此外，PyCharm 说没有名为 sklearn、matplotlib 和 numpy 的模块.

Additionally, PyCharm says there are no modules named sklearn, matplotlib and numpy.

推荐答案

当我遇到类似问题时(无法在 Pycharm 中导入 numpy，但在 cygwin 控制台上)，结果发现 cygwin 使用了与 PyCharm 不同的解释器.

When I had a similar problem (couldn't import numpy in Pycharm but on cygwin console), it turned out that cygwin was using a different interpreter as PyCharm.

在 PyCharm 中，我从 C:Program Filescygwinusrinpython 配置了解释器.相比之下，cygwin 使用的是 /bin/python.在 PyCharm 中单击 File >设置 >项目:您的项目名称 >Project Interpreter，点击Add local"，找到cygwin使用的解释器(我这里是C:Program Filescygwininpython).

In PyCharm I had configured the interpreter from C:Program Filescygwinusrinpython. In contrast, cygwin was using /bin/python. In PyCharm click File > Settings > Project: yourProjectName > Project Interpreter, click on "Add local" and find the interpreter used by cygwin (in my case C:Program Filescygwininpython).

然后在 PyCharm 中通过 View > 打开 Python Console工具窗口 >Python 控制台 并尝试您的导入语句.

Then open the Python Console in PyCharm via View > Tools Windows > Python Console and try your import statement.

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