message: solve the incompatibility between Python2 and Python3
diff: @@ -35,7 +35,9 @@ class GstoreConnector:
  ret += c
  elif (ord(c)==32):
  ret += '+'
  - elif ((ord(c)!=9) and (ord(c)!=10) and (ord(c)!=13)):
  + elif (ord(c)>=256):
  + ret += chr(ord(c))
  + elif ((ord(c)!=10) and (ord(c)!=11) and (ord(c)!=13)):
  ret += "{}{:X}".format("%", ord(c))
  return ret
  