“未定义的来自导入的变量”在eclipse pydev中导入numpy时

问题描述

每当我从numpy导入一个模块时，我得到Eclipse 3.7.2 PyDev 2.7.1在Linux Mint Maya（Cinnamon）上的未定义变量导入错误。问题只在导入numpy时出现;其他模块工作正常。

信息：numpy是针对英特尔MKL库编译的。 Python 2.7.3 [GCC 4.6.3]

示例：

  import numpy as np 
 
a = np.array（[1，2]）
  

PyDev编辑器中的错误消息：
从导入中获取未定义的变量：

我发现其他numpy子模块的类似错误。

代码在Eclipse或终端中正常运行。该问题仅存在于Eclipse-PyDev编辑器中。

解决方案

LD_LIBRARY_PATH 必须包含MKL库的路径。即使 LD_LIBRARY_PATH 设置正确，它必须在Eclipse的窗口>首选项>解释器 - Python下，在右侧的环境选项卡下显式指定。添加一个名为LD_LIBRARY_PATH的新变量，并粘贴 $ LD_LIBRARY_PATH 的内容。

一旦完成，错误如果将行添加到使用numpy对象的代码中，以便再次检查导入，则只会从代码中消失。

I get "Undefined variable from import" error in Eclipse 3.7.2 PyDev 2.7.1 on Linux Mint Maya (Cinnamon) whenever I import a module from numpy. The problem only arises when importing numpy; other modules work just fine.

Info: numpy is compiled against the Intel MKL libraries. Python 2.7.3 [GCC 4.6.3]

example:

import numpy as np

a = np.array([1, 2])

Error message in PyDev editor:"Undefined variable from import: array"

I get similar errors for other numpy submodules.

The code runs properly either within Eclipse or in a terminal. The problem is only present in the Eclipse-PyDev editor.

解决方案

The LD_LIBRARY_PATH has to contain paths to the MKL libraries. Even if LD_LIBRARY_PATH is set properly, it has to be explicitly specifed in Eclipse under Window > Preferences > Interpreter - Python, under the "Environment" tab on the right hand side. Add a new variable called "LD_LIBRARY_PATH" and paste the content of $LD_LIBRARY_PATH.

Once it is done, errors will only disappear from your code if a line is added to the code which uses a numpy object so that imports are checked again.

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