old_contents: import pyte
  
  # Create a new consts value.
  consts = pyte.create_validated("Hello, world!")
  # New varnames values
  varnames = pyte.create_validated()
  
  bc = [pyte.load.LOAD_CONST(consts[0]),
        pyte.tokens.RETURN_VALUE]
  
  func = pyte.compile(bc, consts, varnames)
  
  print(func.__code__.co_code)
  
  a = func()
  print(a)
new_contents: import pyte
  
  # Create a new consts value.
  consts = pyte.create_validated("Hello, world!")
  # New varnames values
  varnames = pyte.create_validated()
  
  bc = [pyte.load.LOAD_CONST(consts[0]),
        pyte.tokens.RETURN_VALUE]
  
  # Compile the code.
  func = pyte.compile(bc, consts, varnames)
  
  # Call it.
  a = func()
  print(a)
  
subject: Make test.py nicer