pySerial in Cygwin
Trying to talk to a serial device spitting out DEADBEEF\n wasn’t
working from Python (within Emacs) on Cygwin. Turns out the trick was
setting the environment variable CYGWIN=reset_com. All of a sudden,
I can do:
import serial
port = serial.Serial(0, baudrate=115200)
print port.readline()
without incident. (To clarify, from bash for testing this I just ran
CYGWIN=reset_com emacs and then Emacs started Python, so Python saw
this variable.)