when running "tut_mission_B737_AVL.py",Spyder reported this error :
"
File "C:\Users\01376028\AppData\Local\Continuum\anaconda3\lib\subprocess.py", line 942, in _get_handles
errwrite = msvcrt.get_osfhandle(stderr.fileno())

UnsupportedOperation: fileno
"
I don't know if I am not doing the right thing or what kind of problem, please help me.
thanks~！