qt_embedding.py example is crashed with python 3.5

I am trying to use mayavi 4.5.0 with Qt 4 under Windows 8.1, python 3.5. But qt embedding examples is crashed.
### Environment

Windows 8.1 64 bit

```
>> python --version
Python 3.5.2 :: Anaconda 4.1.1 (64-bit)

>> conda list mayavi
mayavi 4.5.0 py35_0 menpo

>> conda list pyqt
pyqt 4.11.4 py35_6
```
### Issue

Example: http://docs.enthought.com/mayavi/mayavi/_downloads/qt_embedding.py

```
>>> python qt_embedding.py
```

Result: example runs, draw plot, but after that crashes with the error code: "Unhandled exception at 0x000000018026D0C2 (ig75icd64.dll) in python.exe: 0xC000041D"