Communicate an Arduino with python -

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i trying communicate arduino using python. able connect using serial module. code:

import serial  while true:   print "opening port"   arduinodata = serial.serial("com7", 9600)   print "the port open"    while (arduinodata.inwaiting()==0): #i wait data     print "there no data"    print "reading data"   arduinostring = arduinodata.readline()   print arduinostring

it seems hanging when want read data, in line says arduinostring = arduino.readline().

what problem?

instead using while loop inside of main while loop can use if else statement. also, read data can use read function arduinodata.inwaiting() paramater : arduinodata.read(arduinodata.inwaiting()). hope code you:

arduinodata = serial.serial("com7", 9600)  while true:      if arduinodata.inwaiting() > 0: # check if there data available         print "reading data"         arduinostring = arduinodata.read(arduinodata.inwaiting()) '''read , decode data'''         print arduinostring      else:         print "there no data"

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