无法导入名称mlab

OD IUM 发表于 Dev

OD IUM

尝试导入mayavi时遇到一个非常奇怪的错误。几分钟前，它就像一种魅力一样工作，但是现在出了点问题，我也不知道为什么。

我python从终端开始，然后输入：

from mayavi import mlab

我得到的错误：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/mayavi/mlab.py", line 27, in <module>
    from mayavi.tools.camera import view, roll, yaw, pitch, move
  File "/usr/lib/python2.7/dist-packages/mayavi/tools/camera.py", line 23, in <module>
    from engine_manager import get_engine
  File "/usr/lib/python2.7/dist-packages/mayavi/tools/engine_manager.py", line 14, in <module>
    from mayavi.core.engine import Engine
  File "/usr/lib/python2.7/dist-packages/mayavi/core/engine.py", line 28, in <module>
    from mayavi.core.scene import Scene
  File "/usr/lib/python2.7/dist-packages/mayavi/core/scene.py", line 15, in <module>
    from mayavi.core.source import Source
  File "/usr/lib/python2.7/dist-packages/mayavi/core/source.py", line 19, in <module>
    from mayavi.core.module_manager import ModuleManager
  File "/usr/lib/python2.7/dist-packages/mayavi/core/module_manager.py", line 19, in <module>
    from mayavi.core.lut_manager import LUTManager
  File "/usr/lib/python2.7/dist-packages/mayavi/core/lut_manager.py", line 10, in <module>
    import subprocess
  File "/usr/lib/python2.7/subprocess.py", line 432, in <module>
    import pickle
  File "pickle.py", line 4, in <module>
    from mayavi import mlab
ImportError: cannot import name mlab

Python怎么了？

马丁·彼得斯（Martijn Pieters）

您有一个名为的本地文件pickle.py；这是导入而不是pickle模块。然后，该模块尝试mlab在该模块本身以循环导入依赖关系完成导入之前进行导入：

  File "/usr/lib/python2.7/subprocess.py", line 432, in <module>
    import pickle
  File "pickle.py", line 4, in <module>
    from mayavi import mlab

注意如何subprocess尝试导入pickle并找到你的文件，而不是（路径是相对的，而不是一个完整的路径内/usr/lib/python2.7/。

重命名pickle.py为其他名称，您将在此处隐藏标准库。

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