old_contents: # -*- encoding: utf-8 -*-
  
  from django.core.management.base import BaseCommand
  
  from django.apps import apps
  # from reversion import revisions as reversion
  from reversion.models import Version
  from reversion.errors import RegistrationError
  
  
  class Command(BaseCommand):
  
      help = "Count reversion records for each model"
  
      def handle(self, *args, **options):
          total_count = 0
          print_pattern = "{:<15} {:<30s} {:>10d}"
          prev_app = None
          for model in sorted(
                  apps.get_models(),
                  key=lambda mod: mod.__module__ + '.' + mod.__name__):
              app_name = model._meta.app_label
              model_name = model.__name__
  
              try:
                  qs = Version.objects.get_for_model(model)
                  count = qs.count()
                  total_count += count
                  if prev_app and prev_app != app_name:
                      print()
                  print (print_pattern.format(
                      app_name if prev_app != app_name else "",
                      model_name, count
                  ))
                  prev_app = app_name
              except RegistrationError:
                  # model is not registered with reversion ignore
                  pass
          print ()
          print (print_pattern.format("Total Records", "", total_count))
  
new_contents: # -*- encoding: utf-8 -*-
  
  from django.core.management.base import BaseCommand
  
  from django.apps import apps
  # from reversion import revisions as reversion
  from reversion.models import Version
  from reversion.errors import RegistrationError
  
  
  class Command(BaseCommand):
  
      help = "Count reversion records for each model"
  
      def handle(self, *args, **options):
          total_count = 0
          print_pattern = "{:<15} {:<30s} {:>10d}"
          title_pattern = "{:<15} {:<30s} {:>10s}"
          self.stdout.write(title_pattern.format("App", "Model", "Revisions"))
          self.stdout.write(title_pattern.format("===", "=====", "========="))
          prev_app = None
          for model in sorted(
                  apps.get_models(),
                  key=lambda mod: mod.__module__ + '.' + mod.__name__):
              app_name = model._meta.app_label
              model_name = model.__name__
  
              try:
                  qs = Version.objects.get_for_model(model)
                  count = qs.count()
                  total_count += count
                  if prev_app and prev_app != app_name:
                      self.stdout.write("")
                  self.stdout.write(print_pattern.format(
                      app_name if prev_app != app_name else "",
                      model_name, count
                  ))
                  prev_app = app_name
              except RegistrationError:
                  # model is not registered with reversion ignore
                  pass
          self.stdout.write("")
          self.stdout.write(print_pattern.format("Total Records", "", total_count))
  
subject: Add titles to columns and use write instead of print