title: subprocess.Popen call a program with parameters
body: <p>I have a EXE file, which could be called like this:</p>
  
  <pre><code>Extractor64.exe -F C:\File1 -E  C:\file2
  </code></pre>
  
  <p>When trying to call this from subprocess.Popen, I got an could not find file error:</p>
  
  <pre><code>t=subprocess.Popen("start C:\yardi_backup_v2\Extractor64.exe -F C:\yardi_backup_v2\miadmfggp_live_Full_TKDB1A112_201812180000.Lts.bak -E  C:\yardi_backup_v2\tmp\extracted.bak")
  t.wait()
  </code></pre>
  
  <p>What is the right structure to call this?  </p>