new_contents: #!/usr/bin/python3
  
  #
  # Example file for HelloWorld
  #
  
  def someFunction():
    # Global F
    globalF = "def";
    print(globalF)
  
  def main():
    print("Hello World!")
    # Declare a variable and initialize it
    f = 0;
    print(f)
    
    # Re-declaring the variable works
    f = "abc"
    print(f)
  
    # Different types cannot be combined
    # print("string type" + 123) gives error
    print("string type" + str(123))
    someFunction()
    print(globalF)
  
  if __name__ == "__main__":
    main()
  
  print("END")
  
subject: Create helloworld.py