pi@pi /home/heatronic/HT3/sw $ ./HT3_Logger.py 
Traceback (most recent call last):
  File "lib/ht3_worker.py", line 137, in run
    self.__port.setInterCharTimeout(0.1) #VTIME; set to 0.1*1sec
AttributeError: 'Serial' object has no attribute 'setInterCharTimeout'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./HT3_Logger.py", line 34, in <module>
    HT3_logger.run()
  File "lib/ht3_worker.py", line 142, in run
    raise EnvironmentError(errorstr)
EnvironmentError: ht3_cworker();Error;couldn't open requested device:/dev/ttyAMA0