old_contents: #!/usr/bin/python3
  
  import sys
  import logging
  logging.basicConfig(stream=sys.stderr)
  sys.path.insert(0,"/var/www/interact/")
  
  from run import app as application
new_contents: #!/usr/bin/python3
  
  import sys
  import logging
  logging.basicConfig(stream=sys.stderr)
  sys.path.insert(0,"/srv/interact/")
  
  from run import app as application
  
subject: Use /srv/interact as app root.