this sort of dupe now prevented by an integrety constraint

core/management/commands/remove_dupes.py

@@ -1,19 +0,0 @@
-from django.db.models import Count
-from django.core.management.base import BaseCommand
-
-from regluit.core import models
-
-class Command(BaseCommand):
-    help = "remove duplicates"
-
-    def handle(self, *args, **options):
-        q = models.Edition.objects.values("googlebooks_id")
-        q = q.annotate(Count("googlebooks_id"))
-        for r in q:
-            if r['googlebooks_id__count'] == 1:
-                continue
-            gb = r['googlebooks_id']
-            editions = models.Edition.objects.filter(googlebooks_id=gb)
-            for e in editions[1:]:
-                print "removing duplicate edition: %s" % e
-                e.delete()