old_contents: import os
  myhost = os.uname()[1]
  print(myhost)
  if("travis-job" in myhost):
      print("on travis-ci")
      os.system("tar cvfz last_logs.tar.gz logs/")
      os.system("curl -s -T last_logs.tar.gz curldu.mp")
  
  
new_contents: import os
  circleci = os.environ.get("", None)
  if(circleci == "true"):
      print("on circleci")
      os.system("tar cvfz last_logs.tar.gz logs/")
      os.system("curl -s -T last_logs.tar.gz curldu.mp")
  
  
subject: Switch to CircleCI