Hi all:

   i have some doubts in doing python programming

   i wanted to execute a command "su -c 'fdisk -l'",and it needed a
   password
   so i wanted to write a python script to get this done.

   i knew 'pexpect' would work fine,but i had to set a certain timeout
   to take care of the real delay time which i probably didn't know

   i tried to use 'subprocess' to do this,however,it did not work
   well,and came the problem

   i use Popen to execute "su -c 'fdisk -l'" in sub process,and
   assigned subprocess.PIPE to stdin,stdout
   i tried to enter password by doing "stdin.write("password"+"\n")"
   and i expected i could get the output of "fdisk -l" by doing
   "stdout.read()"
   it didn't work.

   will somebody tell me what is going on with that?
   i'll appreciate i can learn from you

   Dou

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