在MacOS使用Mayavi的與PyQT5

Question

我試圖安裝Mayavi的在MacOS（當前運行的塞拉利昂）使用下列內容：

brew install --with-qt5 vtk 
brew install mayavi 

這理論上應該工作，但現在當我嘗試在我的代碼使用Mayavi的我得到的以下錯誤：

Traceback (most recent call last): 
    File "test.py", line 32, in <module> 
    mlab.figure(1, bgcolor=(1, 1, 1), fgcolor=(0, 0, 0), size=(400, 300)) 
    File "/usr/local/lib/python2.7/site-packages/mayavi/tools/figure.py", line 63, in figure 
    engine = get_engine() 
    File "/usr/local/lib/python2.7/site-packages/mayavi/tools/engine_manager.py", line 101, in get_engine 
    return self.new_engine() 
    File "/usr/local/lib/python2.7/site-packages/mayavi/tools/engine_manager.py", line 146, in new_engine 
    check_backend() 
    File "/usr/local/lib/python2.7/site-packages/mayavi/tools/engine_manager.py", line 49, in check_backend 
    ''') 
ImportError: Could not import backend for traits 
_______________________________________________________________________________ 

Make sure that you have either the TraitsBackendWx or the TraitsBackendQt 
projects installed. If you installed Mayavi with easy_install, try 
easy_install <pkg_name>. easy_install Mayavi[app] will also work. 

If you performed a source checkout, be sure to run 'python setup.py install' 
in Traits, TraitsGUI, and the Traits backend of your choice. 

Also make sure that either wxPython or PyQT is installed. wxPython: 
http://www.wxpython.org/ PyQT: 
http://www.riverbankcomputing.co.uk/software/pyqt/intro 

我相信錯誤在於，自制只支持QT5和PyQT5而編寫Mayavi在後臺尋找PyQt4的事實。有沒有辦法讓Mayavi與PyQT5一起工作，或者有沒有辦法用brew來安裝PyQT4？

當然，這個問題可能在其他地方....

謝謝！

Answer 1

另一種方法是使用，而不是QT WX，在這裏看到的文檔：docs.enthought.com/mayavi/mayavi/installation.html

然後，設置環境變量出口ETS_TOOLKIT = WX - 這是值得一試。