title: Python script stops running after running command using os.system()
body: <p>My python script freezes after running <code>os.system()</code>. The code looks like something below;</p>
  <pre><code>command_line = 'java -jar &quot;backup.jar&quot; test'
  os.system(command_line)
  # python script freezes at this point. Cannot move on to execute code below
  </code></pre>
  <p>For some reason, I suddenly encounter this problem today. No problem in the past. There was no error message. No hints on what's the problem. I did an update to latest Windows 10 package. Not sure if this is the cause.</p>
  <p>If this problem can't be fixed, are there alternatives to os.system() to run a command such that python script doesn't freeze?</p>
  <p>I am using python 3.8 on anaconda.</p>