Why is there no ouput in the System Console? I'm running Blender 2.78a on Windows. Running the python script shown below, there is no output in the system console. 

How can I direct output to the console?
I now can conclude that the black system console window is with Blender 2.78a under PortableApps.com, running from a usb drive. When downloading the zip file directly from blender.org, and unzipping, the console works as described in the manual.