Problem with Ubuntu 14.04 about pyserial HOT 3 OPEN

Which version do you use? (>>> serial.VERSION or the one that's apt-get-able?)

A new device path is assigned to a device when the old device path is still used by a process. To avoid that, make sure to terminate all applications accessing the device (or make them close/release the port) before attaching the device again.

Regarding the error, yet i have seen such errors for various reasons. e.g. some drivers on some older kernels had problems with multiple devices attached at once. Other reasons may include a faulty cable (unreliable USB connection or power problems).

from pyserial.

You can listen for add/remove events from pyudev and when you receive a remove event, close the serial port and wait for the add event before reopening. If you don't close the serial port before the add event, then the serial port will move from ttyACM0 to ttyACM1.

I wrote a simple usb serial monitor/terminal program which listens for pyudev events which you may want to take a look at here: https://github.com/dhylands/usb-ser-mon/blob/master/usb-ser-mon.py
It's coded for python2.

It was one of my first major python programs, so I probably did lots of things in a non-pythonic manner.

from pyserial.

@capriele If this still a problem? If it is resolved, would you kindly close this issue?

from pyserial.