old_contents: """
  meh
  """
  import os
  from roamer.python_edit import file_editor
  from roamer.directory import Directory
  from roamer.edit_directory import EditDirectory
  from roamer.engine import Engine
  from roamer.record import Record
  
  class Session(object):
      def __init__(self, cwd=None):
          self.cwd = cwd
          if cwd is None:
              self.cwd = os.getcwd()
          raw_entries = os.listdir(self.cwd)
          self.directory = Directory(self.cwd, raw_entries)
          self.edit_directory = None
          Record().add_dir(self.directory)
  
      def run(self):
          output = file_editor(self.directory.text())
          self.process(output)
  
      def process(self, output):
          self.edit_directory = EditDirectory(self.cwd, output)
          engine = Engine(self.directory, self.edit_directory)
          engine.compile_commands()
          print engine.print_commands()
          engine.run_commands()
          Record().add_dir(Directory(self.cwd, os.listdir(self.cwd)))
  
new_contents: """
  Represents a single session of roamer.
  Preps the state, gathers records from disk, opens user's file editor
  and passes into the Engine for processing
  """
  import os
  from roamer.python_edit import file_editor
  from roamer.directory import Directory
  from roamer.edit_directory import EditDirectory
  from roamer.engine import Engine
  from roamer.record import Record
  
  class Session(object):
      def __init__(self, cwd=None):
          self.cwd = cwd
          if cwd is None:
              self.cwd = os.getcwd()
          raw_entries = os.listdir(self.cwd)
          self.directory = Directory(self.cwd, raw_entries)
          self.edit_directory = None
          Record().add_dir(self.directory)
  
      def run(self):
          output = file_editor(self.directory.text())
          self.process(output)
  
      def process(self, output):
          self.edit_directory = EditDirectory(self.cwd, output)
          engine = Engine(self.directory, self.edit_directory)
          engine.compile_commands()
          print engine.print_commands()
          engine.run_commands()
          Record().add_dir(Directory(self.cwd, os.listdir(self.cwd)))
  
subject: Add session docstring