debugging - Why argument has been changed when using subprocess(python) to start application(windows)? -


i use python code below start debugger , application(a simple code write myself) argument:

debugger=r'c:\program files (x86)\windows kits\10\debuggers\x86\windbg.exe' exe='test.exe' argument='\x01\x02...\xff'#from 0x01 0xff  subprocess.popen(debugger+" "+exe+" "+argument)

well worked, when set breakpoint in main function, , checked argument, seemed argv[1] not right:

enter image description here

it seems '\x09' , '\x20' changed '\x00' , '\x22' gone.

so what's wrong? doing in wrong way?

command arguments shold passed popen list:

subprocess.popen([debugger, exe, argument])

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