old_contents: #! /usr/bin/env python
  
  # script.py -- Make typescript of terminal session.
  # Usage:
  #       -a      Append to typescript.
  #       -p      Use Python as shell.
  # Author: Steen Lumholt.
  
  
  import os, time, sys, getopt
  import pty
  
  def read(fd):
      data = os.read(fd, 1024)
      file.write(data)
      return data
  
  shell = 'sh'
  filename = 'typescript'
  mode = 'w'
  if os.environ.has_key('SHELL'):
      shell = os.environ['SHELL']
  
  try:
      opts, args = getopt.getopt(sys.argv[1:], 'ap')
  except getopt.error, msg:
      print '%s: %s' % (sys.argv[0], msg)
      sys.exit(2)
  
  for o, a in opts:
      if o == '-a':
          mode = 'a'
      elif o == '-p':
          shell = 'python'
  
  script = open(filename, mode)
  
  sys.stdout.write('Script started, file is %s\n' % filename)
  script.write('Script started on %s\n' % time.ctime(time.time()))
  pty.spawn(shell, read)
  script.write('Script done on %s\n' % time.ctime(time.time()))
  sys.stdout.write('Script done, file is %s\n' % filename)
  
new_contents: #! /usr/bin/env python
  
  # script.py -- Make typescript of terminal session.
  # Usage:
  #       -a      Append to typescript.
  #       -p      Use Python as shell.
  # Author: Steen Lumholt.
  
  
  import os, time, sys, getopt
  import pty
  
  def read(fd):
      data = os.read(fd, 1024)
      script.write(data)
      return data
  
  shell = 'sh'
  filename = 'typescript'
  mode = 'w'
  if os.environ.has_key('SHELL'):
      shell = os.environ['SHELL']
  
  try:
      opts, args = getopt.getopt(sys.argv[1:], 'ap')
  except getopt.error, msg:
      print '%s: %s' % (sys.argv[0], msg)
      sys.exit(2)
  
  for o, a in opts:
      if o == '-a':
          mode = 'a'
      elif o == '-p':
          shell = 'python'
  
  script = open(filename, mode)
  
  sys.stdout.write('Script started, file is %s\n' % filename)
  script.write('Script started on %s\n' % time.ctime(time.time()))
  pty.spawn(shell, read)
  script.write('Script done on %s\n' % time.ctime(time.time()))
  sys.stdout.write('Script done, file is %s\n' % filename)
  
subject: Fix variable.