amazon - python subprocess popen run multiple command -

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I want to open several commands in Python. I installed putty in windows.

  1. SSH in linux machine 

      ssh_command_string: plink -i yourppk.ppk ec2-user @ instanceIp   
  2.  
     A command from that machine will generate a file  
      export_project_command_string: ./AppManage -exportoutout / opt / notme-   
  3.  
     Download this file  
       
      download_command_string: pscp -scp -i yourppk.ppk ec2-user @ instanceIp: / opt / notme-facebook .xml D: \     
     These commands are okay when I check them one by one, but I do not know how to do them in Python To be called once.  
     I have tried the following code, but no luck:  
      LINE_BUFFERED = 1 #NOTE: The first argument is a list p = popen (['cat'] Time = sleep, sleep = true, bufsize = LINE_BUFFERED, stdin = pipew, stdout = pipis, stderr = pipi) for cmd [ssh_command_string, cd_command_string, expo rt_project_command_string, download_command_string]: time.sleep (1) # There is a delay that order one after another even without a p.stdin.write (cmd) p.stdin.flush () #. False () works my machine p.stdin.close ()    
     
     
     Repetition / To perform automatic tasks, see on a server.

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