Serhiy Storchaka added the comment:

Control characters are named control characters because they are control the 
output device. Different devices have different capabilities and reacts 
different on the same codes. Windows console, different sorts of Linux 
terminals and Tk text widget are different devices. Some prints funny 
characters, others not, some beeps, others not, some interprets particular 
flavor of ESC sequences, others not, some allows color and positioning, others 
not. Python can't unify the behavior of these devices without lost most of 
functionality as it can't unify the behavior of black-white matrix printer, 
graphical plotter and 24-bit color LCD monitor.

I would close this issue as not related to Python.

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nosy: +serhiy.storchaka

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<http://bugs.python.org/issue23220>
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