old_contents: # coding=utf-8
  from django.conf import settings
  from django.contrib.auth import get_user_model
  from django.core.management.base import CommandError
  
  from django_extensions.compat import importlib
  from django_extensions.management.utils import signalcommand
  from django_extensions.compat import CompatibilityBaseCommand as BaseCommand
  
  try:
      from django.contrib.sessions.backends.base import VALID_KEY_CHARS  # Django 1.5
  except ImportError:
      VALID_KEY_CHARS = "abcdef0123456789"
  
  
  class Command(BaseCommand):
      help = ("print the user information for the provided session key. "
              "this is very helpful when trying to track down the person who "
              "experienced a site crash.")
      args = "session_key"
      label = 'session key for the user'
  
      can_import_settings = True
  
      @signalcommand
      def handle(self, *args, **options):
          if len(args) > 1:
              raise CommandError("extra arguments supplied")
  
          if len(args) < 1:
              raise CommandError("session_key argument missing")
  
          key = args[0].lower()
  
          if not set(key).issubset(set(VALID_KEY_CHARS)):
              raise CommandError("malformed session key")
  
          engine = importlib.import_module(settings.SESSION_ENGINE)
  
          if not engine.SessionStore().exists(key):
              print("Session Key does not exist. Expired?")
              return
  
          session = engine.SessionStore(key)
          data = session.load()
  
          print('Session to Expire: %s' % session.get_expiry_date())
          print('Raw Data: %s' % data)
  
          uid = data.get('_auth_user_id', None)
  
          if uid is None:
              print('No user associated with session')
              return
  
          print("User id: %s" % uid)
  
          User = get_user_model()
          try:
              user = User.objects.get(pk=uid)
          except User.DoesNotExist:
              print("No user associated with that id.")
              return
  
          username_field = 'username'
  
          if hasattr(User, 'USERNAME_FIELD') and User.USERNAME_FIELD is not None:
              username_field = User.USERNAME_FIELD
  
          for key in [username_field, 'email', 'first_name', 'last_name']:
              print("%s: %s" % (key, getattr(user, key)))
  
new_contents: # coding=utf-8
  from django.conf import settings
  from django.contrib.auth import get_user_model
  from django.contrib.sessions.backends.base import VALID_KEY_CHARS
  from django.core.management.base import CommandError
  
  from django_extensions.compat import importlib
  from django_extensions.management.utils import signalcommand
  from django_extensions.compat import CompatibilityBaseCommand as BaseCommand
  
  
  class Command(BaseCommand):
      help = ("print the user information for the provided session key. "
              "this is very helpful when trying to track down the person who "
              "experienced a site crash.")
      args = "session_key"
      label = 'session key for the user'
  
      can_import_settings = True
  
      @signalcommand
      def handle(self, *args, **options):
          if len(args) > 1:
              raise CommandError("extra arguments supplied")
  
          if len(args) < 1:
              raise CommandError("session_key argument missing")
  
          key = args[0].lower()
  
          if not set(key).issubset(set(VALID_KEY_CHARS)):
              raise CommandError("malformed session key")
  
          engine = importlib.import_module(settings.SESSION_ENGINE)
  
          if not engine.SessionStore().exists(key):
              print("Session Key does not exist. Expired?")
              return
  
          session = engine.SessionStore(key)
          data = session.load()
  
          print('Session to Expire: %s' % session.get_expiry_date())
          print('Raw Data: %s' % data)
  
          uid = data.get('_auth_user_id', None)
  
          if uid is None:
              print('No user associated with session')
              return
  
          print("User id: %s" % uid)
  
          User = get_user_model()
          try:
              user = User.objects.get(pk=uid)
          except User.DoesNotExist:
              print("No user associated with that id.")
              return
  
          username_field = 'username'
  
          if hasattr(User, 'USERNAME_FIELD') and User.USERNAME_FIELD is not None:
              username_field = User.USERNAME_FIELD
  
          for key in [username_field, 'email', 'first_name', 'last_name']:
              print("%s: %s" % (key, getattr(user, key)))
  
subject: Remove Django 1.4 fallback in print_user_for_session.py