old_contents: #!/usr/bin/python3
  # -*- coding: utf-8 -*-
  
  # Externals
  import io
  import json
  
  # Internals
  import generator
  
  
  # Get settings
  with io.open('settings.json', mode='r', encoding='utf-8') as fd:
      settings = json.load(fd)
  
  # Create random code generator
  gen = generator.RandomCodeGenerator()
  
  # Levels
  gen.operator_level = '3'  # max: 3
  gen.pointer_level = '2'  # max: 2
  gen.function_level = '2'  # max: 2
  
  # Booleans
  gen.void = False
  gen.float_ = True
  gen.conditionals = True
  
  # Print generated code
  print(gen.code())
new_contents: #!/usr/bin/python3
  # -*- coding: utf-8 -*-
  
  # Externals
  import io
  import json
  
  # Internals
  import generator
  
  __author__ = 'Lennart Grahl <lennart.grahl@gmail.com>'
  __status__ = 'Prototype'
  __version__ = '1.0.0'
  
  
  # Get settings
  with io.open('settings.json', mode='r', encoding='utf-8') as fd:
      settings = json.load(fd)
  
  # Create random code generator
  gen = generator.RandomCodeGenerator()
  
  # Levels
  gen.operator_level = '3'  # max: 3
  gen.pointer_level = '2'  # max: 2
  gen.function_level = '2'  # max: 2
  
  # Booleans
  gen.void = False
  gen.float_ = True
  gen.conditionals = True
  
  # Print generated code
  print(gen.code())
subject: Add metadata to demo.py