old_contents: #!/usr/bin/env python
  import inspect
  import re
  
  create_cell = lambda x: (lambda: x).func_closure[0]
  
  def forcesetattr(obj, attr_name, attr_value):
      import ctypes
  
      def magic_get_dict(o):
          # find address of dict whose offset is stored in the type
          dict_addr = id(o) + type(o).__dictoffset__
  
          # retrieve the dict object itself
          dict_ptr = ctypes.cast(dict_addr, ctypes.POINTER(ctypes.py_object))
          return dict_ptr.contents.value
  
      def magic_flush_mro_cache():
          ctypes.PyDLL(None).PyType_Modified(ctypes.cast(id(object), ctypes.py_object))
  
      # monkey-patch file.write
      dct = magic_get_dict(obj)
      dct[attr_name] = attr_value
  
      # flush the method cache for the monkey-patch to take effect
      magic_flush_mro_cache()
  
  def _replace_match(match):
      vars = match.groups(1)[0]
      return "= lambda {0}:".format(vars)
  
  def _zen_decorator(func):
      # Look for (x, y, ..., z) >
      lambda_syntax_regex = r'=\s*\(([^\)]*)\)\s*>'
  
      source = inspect.getsource(func)
      source = re.sub(lambda_syntax_regex, _replace_match, source)
  
      # remove attribute to prevent looping endlessly
      source = re.sub('\s*@zen\s*\n', '', source)
  
      # remove leading whitespace
      leading_whitespace_length = len(re.match('\s*', source).group())
      source = '\n'.join(
          [line[leading_whitespace_length:] if len(line) > leading_whitespace_length else line 
          for line in source.split('\n')])
  
      # Gather the original scope of the function
      frame = inspect.currentframe().f_back.f_back
      globals, locals = frame.f_globals, frame.f_locals
      globals.update(locals)
  
      # Run the newly compiled source to define the new function
      recompiled_source = compile(source, '<zen>', 'exec')
      exec(recompiled_source, globals)
  
      # Execute the new function to bind the inner lambdas to the function object attributes
      new_function = globals[func.__name__]
      exec(new_function.__code__, globals)
  
      return new_function
  
  def zen(func):
      return _zen_decorator(func)
  
  
  
  
  
  
new_contents: #!/usr/bin/env python
  import inspect
  import re
  
  def _replace_match(match):
      vars = match.groups(1)[0]
      return "= lambda {0}:".format(vars)
  
  def _zen_decorator(func):
      # Look for (x, y, ..., z) >
      lambda_syntax_regex = r'=\s*\(([^\)]*)\)\s*>'
  
      source = inspect.getsource(func)
      source = re.sub(lambda_syntax_regex, _replace_match, source)
  
      # remove attribute to prevent looping endlessly
      source = re.sub('\s*@zen\s*\n', '', source)
  
      # remove leading whitespace
      leading_whitespace_length = len(re.match('\s*', source).group())
      source = '\n'.join(
          [line[leading_whitespace_length:] if len(line) > leading_whitespace_length else line 
          for line in source.split('\n')])
  
      # Gather the original scope of the function
      frame = inspect.currentframe().f_back.f_back
      globals, locals = frame.f_globals, frame.f_locals
      globals.update(locals)
  
      # Run the newly compiled source to define the new function
      recompiled_source = compile(source, '<zen>', 'exec')
      exec(recompiled_source, globals)
  
      # Execute the new function to bind the inner lambdas to the function object attributes
      new_function = globals[func.__name__]
      exec(new_function.__code__, globals)
  
      return new_function
  
  def zen(func):
      return _zen_decorator(func)
  
  
  
  
  
  
subject: remove dead code.