使用from-import-as时，pydev导致错误 [英] Unresolved import error with pydev while using from-import-as

问题描述

在使用PyDev的Eclipse中，我得到一个未解析的导入：pilImage 错误，同时具有此代码。

In Eclipse with PyDev I get an Unresolved import: pilImage error while having this code.

从PyDev或Shell内部执行代码时，代码工作得很好，但是IDE将高亮度显示为错误。

The code works well when executed from inside PyDev or shell, but the IDE is high-lighting me this as an error.

from PIL import Image as pilImage
# do something with pilImage

我如何解决问题？

推荐答案

我认为这可能是一个误会关于如何使用PIL ...

I think it may be a bit of a misunderstanding on how PIL should be used...

PIL有一个相当不寻常的打包，其中PIL库被添加到PYTHONPATH（而不是包含它的目录），因此，如果您使用easy-install进行安装，则会执行以下操作：

PIL has a rather uncommon packaging, in which the PIL library is added to the PYTHONPATH (and not the directory containing it), so, if you install with easy-install, it'll do something as:

/Lib
/Lib/site-packages
/Lib/site-packages/PIL-1.1.7-py2.6-win32.egg
/Lib/site-packages/PIL-1.1.7-py2.6-win32.egg/Image.py

所以，应该实际完成的导入是： import Image作为pilImage （即：导入中的PIL不存在）。

So, the import that should actually be done is: import Image as pilImage (i.e.: no from PIL in the import).

是导入应该如何： http://effbot.org/imagingbook/introduction.htm

在这种情况下，添加到PYTHONPATH的目录应该是：/Lib/site-packages/PIL-1.1.7-py2.6-win32.egg

And in this case, the directory added to the PYTHONPATH should be: "/Lib/site-packages/PIL-1.1.7-py2.6-win32.egg"

请注意，如果您重命名目录 /Lib/site-packages/PIL-1.1.7-py2.6-win32.egg 到 / Lib / site-packages / PIL ，并在PYTHONPATH中留下 / Lib / site-packages / （在这种情况下，您仍然需要去PyDev解释器配置，只需按下应用程序，以便它发现一个新的PIL包被添加到PYTHONPATH - 注意，在这种情况下/ lib / site-packages / PIL不应该添加到PYTHONPATH ）

Note that your import could work if you renamed the directory /Lib/site-packages/PIL-1.1.7-py2.6-win32.egg to /Lib/site-packages/PIL and just left /Lib/site-packages/ in the PYTHONPATH (in which case you still would need to go to the PyDev interpreter configuration and just press apply so that it finds out that a new PIL package was added to the PYTHONPATH -- note that in this case /Lib/site-packages/PIL should NOT be added to the PYTHONPATH)

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