Spyder提示ValueError: API 'QString' has already been set to version 1
在IPython中使用enthought.mayavi正常，但在Spyder中确有问题，提示如下
Traceback (most recent call last):
File "G:\python\STD\mayavi_mlab.py", line 9, in <module>
from enthought.mayavi import mlab
File "C:\Python27\lib\site-packages\enthought\mayavi\mlab.py", line 3, in <module>
from mayavi.mlab import *
ValueError: API 'QString' has already been set to version 1