从PyQt4导入QtGui时出现找不到图像错误

Question

我在Mac OS X 10.5上安装了ActivePython 2.7。这样做的主要原因是使用包管理器pypm。然而，在安装了ActivePython并将.bash_profile文件设置为使用该版本的Python之后，我在安装pypm的库中遇到了很多问题。要安装所有这些模块，我只需键入

pypm install <package-name>

这就是我获得matplotlib、PyQt4、PIL等的方法。问题是，所有这些似乎都安装得没有问题，它们将正确的.pth和.so文件放入正确的站点包文件夹中，基本导入操作正常。但我有以下错误。

首先，以下是我在机器上检查Python时看到的内容：

new-host:site-packages ely$ which python
/usr/local/bin/python
new-host:site-packages ely$ ls -l /usr/local/bin/python
lrwxr-xr-x  1 root  wheel  60 May 25 22:15 /usr/local/bin/python -> /Library/Frameworks/Python.framework/Versions/2.7/bin/python

接下来，我调用Python并尝试导入内容。

new-host:site-packages ely$ python
ActivePython 2.7.1.4 (ActiveState Software Inc.) based on
Python 2.7.1 (r271:86832, Feb  7 2011, 11:33:10) 
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import PyQt4
>>> from PyQt4 import QtGui
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: dlopen(PyQt4/QtGui.so, 2): Library not loaded: QtGui.framework/Versions/4/QtGui
Referenced from: /Users/ely/Library/Python/2.7/lib/python/site-packages/PyQt4/QtGui.so
Reason: image not found

因此，上面显示PyQt4导入时没有任何抱怨，但当我尝试使用任何子模块时，都会出现"找不到图像"错误。例如，这里是标准的matplotlib。

>>> import matplotlib
>>> import matplotlib.pyplot as plt
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "matplotlib/pyplot.py", line 23, in <module>
from matplotlib.figure import Figure, figaspect
File "matplotlib/figure.py", line 16, in <module>
import artist
File "matplotlib/artist.py", line 6, in <module>
from transforms import Bbox, IdentityTransform, TransformedBbox, TransformedPath
File "matplotlib/transforms.py", line 34, in <module>
from matplotlib._path import affine_transform
ImportError: dlopen(matplotlib/_path.so, 2): Symbol not found: __ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
Referenced from: /Users/ely/Library/Python/2.7/lib/python/site-packages/matplotlib/_path.so
Expected in: dynamic lookup
>>> from matplotlib import pyplot
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "matplotlib/pyplot.py", line 23, in <module>
from matplotlib.figure import Figure, figaspect
File "matplotlib/figure.py", line 16, in <module>
import artist
File "matplotlib/artist.py", line 6, in <module>
from transforms import Bbox, IdentityTransform, TransformedBbox, TransformedPath
File "matplotlib/transforms.py", line 34, in <module>
from matplotlib._path import affine_transform
ImportError: dlopen(matplotlib/_path.so, 2): Symbol not found: __ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
Referenced from: /Users/ely/Library/Python/2.7/lib/python/site-packages/matplotlib/_path.so
Expected in: dynamic lookup

你有没有想过为什么安装了pypm的版本会有这么大的问题？我在Ubuntu工作电脑上使用ActivePython和pypm已经很长时间了，从来没有遇到过这些问题。我用pypm安装的所有东西都运行得很好。为什么它在Mac上如此不同？

Answer 1

确保python和qt具有相同的体系结构（32位与64位）

对于mathplot，它看起来像是一个不同的g++，用于编译python和mathplot

你试过股票osx-python吗？