I am attempting to screen scrape SuperDOS, an extremely closed system that uses wyse 60 terminals to communicate with a dos machine. I have not been able to communicate properly with superdos until trying the handy miniterm.py example from the pyserial package in conjunction with Markus Gutschke's wy60 emulator which translates input through an xterm into wyse 60 commands. These programs together allow me to interact with superdos pretty well ... with the exception of the arrow keys: for those I must fall back to the old cntl-letter combos to get the cursor to behave (actually cntl-letter x 2.. for some reason it likes an extra prod). This is fine, as now I have a way to debug my eventual script.
My big problem is, I am completely unable to get SuperDos to respond to my carriage returns from within the script! I can watch the script work through miniterm.py. I have sent the return and newline characters in various combinations starting with "\n,\r", "\x0a\x0d", but they respond weirdly, putting the cursor *above* the existing command line, changing the cursor to an outline and generally letting me know that I am on the wrong track. Has some clever human already created a handy module to handle wyse60 and other terminal emulation from within a python program? I have looked over the curses module, but it seems to be aimed at drawing proper screens for the user, not translation. PySerial's ability to suck up the output via readlines() is awesome, and I can see how I *think* it should all be done, but the charset weirdness has got me stymied! I am going to look at Mr. Gutscheke's source to see how he does it, but I am barely conversant in python and fear that exposure to that much C code may cause dizziness! Thanks! -- http://mail.python.org/mailman/listinfo/python-list
