Ghost.py not finding PySide?

问题

I'm trying to get started with the Ghost.py headless browser on a Mac. I installed Ghost.py and its dependencies using these links/commands:

Qt 5.0.1 for Mac, has a GUI installer
PySide 1.1.0, which requires Qt Version >= 4.7.4, has a GUI installer
sudo pip install Ghost.py

I launched Python, and confirmed that I can import PySide. However, when I do from ghost import Ghost, it fails to find PySide:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ghost/__init__.py", line 1, in <module>
    from ghost import Ghost
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ghost/ghost.py", line 28, in <module>
    raise Exception("Ghost.py requires PySide or PyQt")
Exception: Ghost.py requires PySide or PyQt

By doing import PySide; print PySide;, it appears that PySide is installed here on my system: /Library/Python/2.7/site-packages/PySide. So, appended the PYTHONPATH like this:
export PYTHONPATH=$PYTHONPATH:/Library/Python/2.7/site-packages #for PySide.

However, Ghost.py still cannot find PySide.

How can I convince Ghost.py to find my installation of PySide?

Environment:

Mac OS X 10.7.5
Python 2.7
Qt 5.0.1
PySide 1.1.0

回答1:

I faced the exact same problem but managed to fix it. Here is how:

Uninstall the current installation of PySide and qt on your system. Make sure PySide is not present in /Library/Python/2.7/site-packages.
Install qt and PySide from http://qt-project.org/wiki/PySide_Binaries_MacOSX.

PS: My system is running 10.9 (Mavericks) but I think it should work in 10.7 (Mountain Lion) as well.

来源：https://stackoverflow.com/questions/15047426/ghost-py-not-finding-pyside

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python

macos

webkit

screen-scraping

ghost.py