M. Beyeler (2015). OpenCV with Python Blueprints: Design and develop advanced computer vision projects using OpenCV with Python, Packt Publishing Ltd., ISBN 978-178528269-0.
Observed on Windows 10, Python 2.7.8, wxPython 3.0.2.0: The wx.EVT_PAINT event is looping and is blocking the wx.EVT_TIMER event (Seem to be some such issues with wxPython: http://trac.wxwidgets.org/ticket/11980 for one). Initial picture shows up, but then the window is blocked, doesn't refresh, and doesn't respond to any actions.
Observed on Windows 10, Python 2.7.8, wxPython 3.0.2.0: The wx.EVT_PAINT event is looping and is blocking the wx.EVT_TIMER event (Seem to be some such issues with wxPython: http://trac.wxwidgets.org/ticket/11980 for one). Initial picture shows up, but then the window is blocked, doesn't refresh, and doesn't respond to any actions.