old_contents: import os
  
  from blessings import Terminal
  
  
  class Cursor(object):
      """Common methods for cursor manipulation
  
      :type  term: NoneType|blessings.Terminal
      :param term: Terminal instance; if not given, will be created by the class
      """
  
      def __init__(self, term=None):
          self.term = Terminal() if term is None else term
          self._stream = self.term.stream
          self._saved = False
  
      def write(self, s):
          """Writes ``s`` to the terminal output stream
  
          Writes can be disabled by setting the environment variable
              `PROGRESSIVE_NOWRITE` to `'True'`
          """
          should_write_s = os.getenv('PROGRESSIVE_NOWRITE') != "True"
          if should_write_s:
              self._stream.write(s)
  
      def save(self):
          """Saves current cursor position, so that it can be restored later"""
          self.write(self.term.save)
          self._saved = True
  
      def restore(self):
          """Restores cursor to the previously saved location
  
          Cursor position will only be restored IF it was previously saved
              by this instance (and not by any external force)
          """
          if self._saved:
              self.write(self.term.restore)
  
      def flush(self):
          """Flush buffer of terminal output stream"""
          self._stream.flush()
  
      def newline(self):
          """Effects a newline by moving the cursor down and clearing"""
          self.write(self.term.move_down)
          self.write(self.term.clear_bol)
  
      def clear_lines(self, num_lines=0):
          for i in range(num_lines):
              self.write(self.term.move_down)
          for i in range(num_lines):
              self.write(self.term.move_up)
  
new_contents: import os
  
  from blessings import Terminal
  
  
  class Cursor(object):
      """Common methods for cursor manipulation
  
      :type  term: NoneType|blessings.Terminal
      :param term: Terminal instance; if not given, will be created by the class
      """
  
      def __init__(self, term=None):
          self.term = Terminal() if term is None else term
          self._stream = self.term.stream
          self._saved = False
  
      def write(self, s):
          """Writes ``s`` to the terminal output stream
  
          Writes can be disabled by setting the environment variable
              `PROGRESSIVE_NOWRITE` to `'True'`
          """
          should_write_s = os.getenv('PROGRESSIVE_NOWRITE') != "True"
          if should_write_s:
              self._stream.write(s)
  
      def save(self):
          """Saves current cursor position, so that it can be restored later"""
          self.write(self.term.save)
          self._saved = True
  
      def restore(self):
          """Restores cursor to the previously saved location
  
          Cursor position will only be restored IF it was previously saved
              by this instance (and not by any external force)
          """
          if self._saved:
              self.write(self.term.restore)
  
      def flush(self):
          """Flush buffer of terminal output stream"""
          self._stream.flush()
  
      def newline(self):
          """Effects a newline by moving the cursor down and clearing"""
          self.write(self.term.move_down)
          self.write(self.term.clear_bol)
  
      def clear_lines(self, num_lines=0):
          for i in range(num_lines):
              self.write(self.term.clear_eol)
              self.write(self.term.move_down)
          for i in range(num_lines):
              self.write(self.term.move_up)
  
subject: Clear to end of line when clearing lines using Cursor.clear_lines