old_contents: # encoding: utf-8
  """
  Utilities for warnings.  Shoudn't we just use the built in warnings module.
  """
  
  #-----------------------------------------------------------------------------
  #  Copyright (C) 2008-2009  The IPython Development Team
  #
  #  Distributed under the terms of the BSD License.  The full license is in
  #  the file COPYING, distributed as part of this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  import sys
  
  from IPython.utils import io
  
  #-----------------------------------------------------------------------------
  # Code
  #-----------------------------------------------------------------------------
  
  def warn(msg,level=2,exit_val=1):
      """Standard warning printer. Gives formatting consistency.
  
      Output is sent to io.stderr (sys.stderr by default).
  
      Options:
  
      -level(2): allows finer control:
        0 -> Do nothing, dummy function.
        1 -> Print message.
        2 -> Print 'WARNING:' + message. (Default level).
        3 -> Print 'ERROR:' + message.
        4 -> Print 'FATAL ERROR:' + message and trigger a sys.exit(exit_val).
  
      -exit_val (1): exit value returned by sys.exit() for a level 4
      warning. Ignored for all other levels."""
  
      if level>0:
          header = ['','','WARNING: ','ERROR: ','FATAL ERROR: ']
          print >> io.stderr, '%s%s' % (header[level],msg)
          if level == 4:
              print >> io.stderr,'Exiting.\n'
              sys.exit(exit_val)
  
              
  def info(msg):
      """Equivalent to warn(msg,level=1)."""
  
      warn(msg,level=1)
  
      
  def error(msg):
      """Equivalent to warn(msg,level=3)."""
  
      warn(msg,level=3)
  
      
  def fatal(msg,exit_val=1):
      """Equivalent to warn(msg,exit_val=exit_val,level=4)."""
  
      warn(msg,exit_val=exit_val,level=4)
  
  
new_contents: # encoding: utf-8
  """
  Utilities for warnings.  Shoudn't we just use the built in warnings module.
  """
  
  #-----------------------------------------------------------------------------
  #  Copyright (C) 2008-2009  The IPython Development Team
  #
  #  Distributed under the terms of the BSD License.  The full license is in
  #  the file COPYING, distributed as part of this software.
  #-----------------------------------------------------------------------------
  
  #-----------------------------------------------------------------------------
  # Imports
  #-----------------------------------------------------------------------------
  
  import sys
  
  from IPython.utils import io
  
  #-----------------------------------------------------------------------------
  # Code
  #-----------------------------------------------------------------------------
  
  def warn(msg,level=2,exit_val=1):
      """Standard warning printer. Gives formatting consistency.
  
      Output is sent to io.stderr (sys.stderr by default).
  
      Options:
  
      -level(2): allows finer control:
        0 -> Do nothing, dummy function.
        1 -> Print message.
        2 -> Print 'WARNING:' + message. (Default level).
        3 -> Print 'ERROR:' + message.
        4 -> Print 'FATAL ERROR:' + message and trigger a sys.exit(exit_val).
  
      -exit_val (1): exit value returned by sys.exit() for a level 4
      warning. Ignored for all other levels."""
  
      if level>0:
          header = ['','','WARNING: ','ERROR: ','FATAL ERROR: ']
          io.stderr.write('%s%s' % (header[level],msg))
          if level == 4:
              print >> io.stderr,'Exiting.\n'
              sys.exit(exit_val)
  
              
  def info(msg):
      """Equivalent to warn(msg,level=1)."""
  
      warn(msg,level=1)
  
      
  def error(msg):
      """Equivalent to warn(msg,level=3)."""
  
      warn(msg,level=3)
  
      
  def fatal(msg,exit_val=1):
      """Equivalent to warn(msg,exit_val=exit_val,level=4)."""
  
      warn(msg,exit_val=exit_val,level=4)
  
  
subject: Fix test that got broken under Python 2