On 3/14/2015 6:50 AM, Jason Heeris wrote:
I am trying to automate the use of some old, in-house terminal-based
programs that use screen redrawing for their interface. This includes
single line redrawing (eg. using '\r' and overwriting), complete screen
clearing, and fine-grained cursor movement and overwriting (probably not
all in the same program at the same time though).
Is there a module/library that can help me with this?
I know of pexpect, but that seems more oriented towards line-by-line
prompts that don't involve redraws (eg. login prompt, then password
prompt on a new line). Think instead of trying to automate applications
like emacs, aptitude or even nethack that redraw sections of the screen
without making the terminal scroll.
This automation requires more than just sending a set of keystrokes, but
also reading what is displayed on screen and making decisions based up
on that.
Is there a library that can abstract the received redrawing activity so
I don't have to even know if the application has, eg. used a carriage
return or some other kind of cursor movement? Is there a way to just ask
"if this were to be run in an ANSI terminal, what would be in each cell?"
Python 2 or 3 are both fine, external packages are fine, but it has to
work on Linux (eg. Ubuntu 14.04 or later, Debian Wheezy or later).
Any pointers appreciated.
Perhaps you can use the guts of a terminal emulation program, removing
the part that displays the interpreted stream (a 24 x 80 array) on the
screen. Searching 'python terminal emulation' returns these
terminal.py - A Pure Python Terminal Emulator - GitHub Pages
liftoff.github.io/GateOne/Developer/terminal.html
This crux of this module is the Terminal class which is a pure-Python
implementation of the quintessential Unix terminal emulator. It does its
best to emulate an ...
pyte 0.4.9 : Python Package Index
https://pypi.python.org/pypi/pyte/
Python
Dec 3, 2014 - What is pyte? It's an in memory VTXXX-compatible terminal
emulator. XXX stands for a series of video terminals, developed by DEC
between ...
--
Terry Jan Reedy
--
https://mail.python.org/mailman/listinfo/python-list
