diff --git a/symposion/proposals/actions.py b/symposion/proposals/actions.py
index eeeb6289..f5dfd19f 100644
--- a/symposion/proposals/actions.py
+++ b/symposion/proposals/actions.py
@@ -25,13 +25,13 @@ def export_as_csv_action(description=None, fields=None, exclude=None,
             excludeset = set(exclude)
             field_names = field_names - excludeset
         response = HttpResponse(content_type="text/csv")
-        response["Content-Disposition"] = "attachment; filename=%s.csv" % unicode(opts).replace(".", "_")
+        response["Content-Disposition"] = "attachment; filename=%s.csv" % str(opts).replace(".", "_")
         writer = csv.writer(response)
         if header:
             writer.writerow(list(field_names))
         for obj in queryset:
             writer.writerow(
-                [unicode(getattr(obj, field)).encode("utf-8", "replace") for field in field_names])
+                [str(getattr(obj, field)).encode("utf-8", "replace") for field in field_names])
         return response
     if description is None:
         description = _("Export selected objects as CSV file")
diff --git a/symposion/proposals/models.py b/symposion/proposals/models.py
index e4b9e563..bdf43ffd 100644
--- a/symposion/proposals/models.py
+++ b/symposion/proposals/models.py
@@ -205,6 +205,7 @@ class ProposalBase(models.Model):
     def __str__(self):
         return self.title
 
+
 reversion.register(ProposalBase)
 
 
diff --git a/symposion/reviews/admin.py b/symposion/reviews/admin.py
index c5b0dd48..5144c2ca 100644
--- a/symposion/reviews/admin.py
+++ b/symposion/reviews/admin.py
@@ -17,4 +17,4 @@ admin.site.register(
     list_display=['proposal', 'status', 'score', 'vote_count', 'accepted']
 )
 
-admin.site.register(ResultNotification)
\ No newline at end of file
+admin.site.register(ResultNotification)
diff --git a/symposion/reviews/management/commands/assign_reviewers.py b/symposion/reviews/management/commands/assign_reviewers.py
index 20594f4c..6364e0fc 100644
--- a/symposion/reviews/management/commands/assign_reviewers.py
+++ b/symposion/reviews/management/commands/assign_reviewers.py
@@ -8,5 +8,5 @@ class Command(BaseCommand):
 
     def handle(self, *args, **options):
         for proposal in ProposalBase.objects.filter(cancelled=0):
-            print "Creating assignments for %s" % (proposal.title,)
+            print("Creating assignments for %s" % proposal.title)
             ReviewAssignment.create_assignments(proposal)
diff --git a/symposion/reviews/management/commands/create_review_permissions.py b/symposion/reviews/management/commands/create_review_permissions.py
index 67dfc96b..2f21754a 100644
--- a/symposion/reviews/management/commands/create_review_permissions.py
+++ b/symposion/reviews/management/commands/create_review_permissions.py
@@ -22,4 +22,4 @@ class Command(BaseCommand):
                     content_type__pk=ct.id,
                     defaults={"name": "Can %s %s" % (action, ps), "content_type": ct}
                 )
-                print perm
+                print(perm)
diff --git a/symposion/reviews/models.py b/symposion/reviews/models.py
index d47feff5..63c190cf 100644
--- a/symposion/reviews/models.py
+++ b/symposion/reviews/models.py
@@ -47,6 +47,8 @@ class Votes(object):
         (MINUS_TWO, _("−2 — Serious issues and I will argue to reject this proposal.")),
         (ABSTAIN, _("Abstain - I do not want to review this proposal and I do not want to see it again.")),
     ]
+
+
 VOTES = Votes()
 
 
@@ -395,4 +397,6 @@ def accepted_proposal(sender, instance=None, **kwargs):
         promote_proposal(instance.proposal)
     else:
         unpromote_proposal(instance.proposal)
+
+
 post_save.connect(accepted_proposal, sender=ProposalResult)
diff --git a/symposion/reviews/views.py b/symposion/reviews/views.py
index 3768225d..c45dbf4a 100644
--- a/symposion/reviews/views.py
+++ b/symposion/reviews/views.py
@@ -78,23 +78,23 @@ REVIEW_STATUS_FILTERS = {
     # proposals with at least VOTE_THRESHOLD reviews and at least one +2 and no -2s, sorted by
     # the 'score'
     POSITIVE: lambda qs: qs.filter(result__vote_count__gte=VOTE_THRESHOLD, result__plus_two__gt=0,
-                                result__minus_two=0).order_by("-result__score"),
+                                   result__minus_two=0).order_by("-result__score"),
     # proposals with at least VOTE_THRESHOLD reviews and at least one -2 and no +2s, reverse
     # sorted by the 'score'
     NEGATIVE: lambda qs: qs.filter(result__vote_count__gte=VOTE_THRESHOLD, result__minus_two__gt=0,
-                                result__plus_two=0).order_by("result__score"),
+                                   result__plus_two=0).order_by("result__score"),
     # proposals with at least VOTE_THRESHOLD reviews and neither a +2 or a -2, sorted by total
     # votes (lowest first)
     INDIFFERENT: lambda qs: qs.filter(result__vote_count__gte=VOTE_THRESHOLD, result__minus_two=0,
-                                   result__plus_two=0).order_by("result__vote_count"),
+                                      result__plus_two=0).order_by("result__vote_count"),
     # proposals with at least VOTE_THRESHOLD reviews and both a +2 and -2, sorted by total
     # votes (highest first)
-    CONTROVERSIAL: lambda qs: qs.filter(result__vote_count__gte=VOTE_THRESHOLD,
-                                     result__plus_two__gt=0, result__minus_two__gt=0)
-         .order_by("-result__vote_count"),
+    CONTROVERSIAL: lambda qs: qs.filter(
+        result__vote_count__gte=VOTE_THRESHOLD, result__plus_two__gt=0,
+        result__minus_two__gt=0).order_by("-result__vote_count"),
     # proposals with fewer than VOTE_THRESHOLD reviews
-    TOO_FEW: lambda qs: qs.filter(result__vote_count__lt=VOTE_THRESHOLD)
-        .order_by("result__vote_count"),
+    TOO_FEW: lambda qs: qs.filter(
+        result__vote_count__lt=VOTE_THRESHOLD).order_by("result__vote_count"),
 }
 
 
@@ -153,7 +153,7 @@ def review_all_proposals_csv(request):
 
     # The fields from each proposal object to report in the csv
     fields = [
-        "id", "proposal_type", "speaker_name","speaker_email", "title",
+        "id", "proposal_type", "speaker_name", "speaker_email", "title",
         "submitted", "other_speakers", "speaker_travel",
         "speaker_accommodation", "cancelled", "status", "score", "total_votes",
         "minus_two", "minus_one", "plus_one", "plus_two",
@@ -189,11 +189,6 @@ def review_all_proposals_csv(request):
 
         csv_line = [getattr(proposal, field) for field in fields]
 
-        # Enusre that unicode items are handled properly.
-        for i, item in enumerate(csv_line):
-            if isinstance(item, unicode):
-                csv_line[i] = item.encode("utf8")
-
         writer.writerow(csv_line)
 
     return response
@@ -229,7 +224,7 @@ def review_random_proposal(request, section_slug):
         # Select a proposal with less than the median number of total votes
         proposals = proposals_generator(request, queryset, check_speaker=False)
         proposals = list(proposals)
-        proposals.sort(key = lambda proposal: proposal.total_votes)
+        proposals.sort(key=lambda proposal: proposal.total_votes)
         # The first half is the median or less.
         # The +1 means we round _up_.
         proposals = proposals[:(len(proposals) + 1) / 2]
@@ -319,7 +314,7 @@ def review_admin(request, section_slug):
                 yield user
 
     reviewers_sorted = list(reviewers())
-    reviewers_sorted.sort(key= lambda reviewer: 0 - reviewer.total_votes)
+    reviewers_sorted.sort(key=lambda reviewer: 0 - reviewer.total_votes)
 
     ctx = {
         "section_slug": section_slug,
diff --git a/symposion/schedule/helpers.py b/symposion/schedule/helpers.py
index 68e72e39..2802f489 100644
--- a/symposion/schedule/helpers.py
+++ b/symposion/schedule/helpers.py
@@ -28,4 +28,4 @@ def create_slot(section_slug, date, kind, start, end, rooms):
         slot_room.slot = slot
         slot_room.room = room
         slot_room.save(force_insert=True)
-    print "created {} [start={}; end={}]".format(slot.kind.label, slot.start, slot.end)
+    print("created {} [start={}; end={}]".format(slot.kind.label, slot.start, slot.end))
diff --git a/symposion/schedule/views.py b/symposion/schedule/views.py
index 6e85a2fd..f7375523 100644
--- a/symposion/schedule/views.py
+++ b/symposion/schedule/views.py
@@ -21,6 +21,7 @@ from symposion.schedule.models import Schedule, Day, Slot, Presentation, Session
 from symposion.schedule.timetable import TimeTable
 from symposion.conference.models import Conference
 
+
 def fetch_schedule(slug):
     qs = Schedule.objects.all()
 
@@ -265,11 +266,13 @@ def schedule_json(request):
         content_type="application/json"
     )
 
+
 class EventFeed(ICalFeed):
 
     product_id = '-//linux.conf.au/schedule//EN'
     timezone = settings.TIME_ZONE
     filename = 'conference.ics'
+
     def description(self):
         return Conference.objects.all().first().title
 
@@ -283,7 +286,7 @@ class EventFeed(ICalFeed):
 
     def item_title(self, item):
         if hasattr(item.content, 'proposal'):
-            title =  item.content.title
+            title = item.content.title
         else:
             title = item.kind if item.kind else "Slot"
         return title
@@ -305,18 +308,18 @@ class EventFeed(ICalFeed):
     def item_location(self, item):
         return ", ".join(room["name"] for room in item.rooms.values())
 
-    def item_link(self, item):
+    def item_link(self, item) -> str:
         if hasattr(item.content, 'proposal'):
-            return 'http://%s%s' % (
-                                    Site.objects.get_current().domain,
-                                    reverse('schedule_presentation_detail', args=[item.content.pk])
-                                    )
+            return (
+                'http://%s%s' % (Site.objects.get_current().domain,
+                                 reverse('schedule_presentation_detail', args=[item.content.pk])))
         else:
             return 'http://%s' % Site.objects.get_current().domain
-    
+
     def item_guid(self, item):
         return '%d@%s' % (item.pk, Site.objects.get_current().domain)
 
+
 def session_list(request):
     sessions = Session.objects.all().order_by('pk')
 
diff --git a/symposion/speakers/management/commands/export_speaker_data.py b/symposion/speakers/management/commands/export_speaker_data.py
index 00e82588..08da5891 100644
--- a/symposion/speakers/management/commands/export_speaker_data.py
+++ b/symposion/speakers/management/commands/export_speaker_data.py
@@ -9,11 +9,12 @@ from symposion.speakers.models import Speaker
 class Command(BaseCommand):
 
     def handle(self, *args, **options):
-        csv_file = csv.writer(open(os.path.join(os.getcwd(), "speakers.csv"), "wb"))
-        csv_file.writerow(["Name", "Bio"])
+        with open(os.path.join(os.getcwd(), "speakers.csv"), "w") as csv_file:
+            csv_writer = csv.writer(csv_file)
+            csv_writer.writerow(["Name", "Bio"])
 
-        for speaker in Speaker.objects.all():
-            csv_file.writerow([
-                speaker.name.encode("utf-8"),
-                speaker.biography.encode("utf-8"),
-            ])
+            for speaker in Speaker.objects.all():
+                csv_writer.writerow([
+                    speaker.name,
+                    speaker.biography,
+                ])
diff --git a/symposion/speakers/models.py b/symposion/speakers/models.py
index ddbbceee..98d0d8a8 100644
--- a/symposion/speakers/models.py
+++ b/symposion/speakers/models.py
@@ -66,9 +66,9 @@ class Speaker(models.Model):
     accessibility = models.TextField(
         blank=True,
         help_text=_("Please describe any special accessibility requirements "
-        "that you may have. Edit using "
-        "<a href='http://warpedvisions.org/projects/"
-        "markdown-cheat-sheet/' target='_blank'>Markdown</a>."),
+                    "that you may have. Edit using "
+                    "<a href='http://warpedvisions.org/projects/"
+                    "markdown-cheat-sheet/' target='_blank'>Markdown</a>."),
         verbose_name=_("Accessibility requirements"))
     accessibility_html = models.TextField(blank=True)
     travel_assistance = models.BooleanField(
diff --git a/symposion/sponsorship/management/commands/export_sponsors_data.py b/symposion/sponsorship/management/commands/export_sponsors_data.py
index 61172d44..a20e3f3b 100644
--- a/symposion/sponsorship/management/commands/export_sponsors_data.py
+++ b/symposion/sponsorship/management/commands/export_sponsors_data.py
@@ -30,48 +30,48 @@ class Command(BaseCommand):
         except:
             pass
 
-        csv_file = csv.writer(
-            open(os.path.join(os.getcwd(), "build", "sponsors.csv"), "wb")
-        )
-        csv_file.writerow(["Name", "URL", "Level", "Description"])
+        with open(os.path.join(os.getcwd(), "build", "sponsors.csv"), "w") as csv_file:
+            csv_writer = csv.writer(csv_file)
+            csv_writer.writerow(["Name", "URL", "Level", "Description"])
 
-        for sponsor in Sponsor.objects.all():
-            path = os.path.join(os.getcwd(), "build", slugify(sponsor.name))
-            try:
-                os.makedirs(path)
-            except:
-                pass
+            for sponsor in Sponsor.objects.all():
+                path = os.path.join(os.getcwd(), "build", slugify(sponsor.name))
+                try:
+                    os.makedirs(path)
+                except:
+                    pass
 
-            data = {
-                "name": sponsor.name,
-                "url": sponsor.external_url,
-                "level": sponsor.level.name,
-                "description": "",
-            }
-            for sponsor_benefit in sponsor.sponsor_benefits.all():
-                if sponsor_benefit.benefit_id == 2:
-                    data["description"] = sponsor_benefit.text
-                if sponsor_benefit.benefit_id == 1:
-                    if sponsor_benefit.upload:
-                        data["ad"] = sponsor_benefit.upload.path
-                if sponsor_benefit.benefit_id == 7:
-                    if sponsor_benefit.upload:
-                        data["logo"] = sponsor_benefit.upload.path
+                data = {
+                    "name": sponsor.name,
+                    "url": sponsor.external_url,
+                    "level": sponsor.level.name,
+                    "description": "",
+                }
 
-            if "ad" in data:
-                ad_path = data.pop("ad")
-                shutil.copy(ad_path, path)
-            if "logo" in data:
-                logo_path = data.pop("logo")
-                shutil.copy(logo_path, path)
+                for sponsor_benefit in sponsor.sponsor_benefits.all():
+                    if sponsor_benefit.benefit_id == 2:
+                        data["description"] = sponsor_benefit.text
+                    if sponsor_benefit.benefit_id == 1:
+                        if sponsor_benefit.upload:
+                            data["ad"] = sponsor_benefit.upload.path
+                    if sponsor_benefit.benefit_id == 7:
+                        if sponsor_benefit.upload:
+                            data["logo"] = sponsor_benefit.upload.path
 
-            csv_file.writerow([
-                data["name"].encode("utf-8"),
-                data["url"].encode("utf-8"),
-                data["level"].encode("utf-8"),
-                data["description"].encode("utf-8")
-            ])
+                if "ad" in data:
+                    ad_path = data.pop("ad")
+                    shutil.copy(ad_path, path)
+                if "logo" in data:
+                    logo_path = data.pop("logo")
+                    shutil.copy(logo_path, path)
 
-        zipdir(
-            os.path.join(os.getcwd(), "build"),
-            os.path.join(os.getcwd(), "sponsors.zip"))
+                csv_writer.writerow([
+                    data["name"],
+                    data["url"],
+                    data["level"],
+                    data["description"]
+                ])
+
+            zipdir(
+                os.path.join(os.getcwd(), "build"),
+                os.path.join(os.getcwd(), "sponsors.zip"))
diff --git a/symposion/sponsorship/management/commands/reset_sponsor_benefits.py b/symposion/sponsorship/management/commands/reset_sponsor_benefits.py
index 3c17efab..efc7edba 100644
--- a/symposion/sponsorship/management/commands/reset_sponsor_benefits.py
+++ b/symposion/sponsorship/management/commands/reset_sponsor_benefits.py
@@ -19,7 +19,7 @@ class Command(BaseCommand):
                         sponsor=sponsor, benefit=benefit_level.benefit)
 
                     if created:
-                        print "created", sponsor_benefit, "for", sponsor
+                        print("created %s for %s" % (sponsor_benefit, sponsor))
 
                     # and set to default limits for this level.
                     sponsor_benefit.max_words = benefit_level.max_words
diff --git a/symposion/sponsorship/models.py b/symposion/sponsorship/models.py
index f28bc57e..f93bf8c2 100644
--- a/symposion/sponsorship/models.py
+++ b/symposion/sponsorship/models.py
@@ -203,12 +203,16 @@ class Sponsor(models.Model):
 def _store_initial_level(sender, instance, **kwargs):
     if instance:
         instance._initial_level_id = instance.level_id
+
+
 post_init.connect(_store_initial_level, sender=Sponsor)
 
 
 def _check_level_change(sender, instance, created, **kwargs):
     if instance and (created or instance.level_id != instance._initial_level_id):
         instance.reset_benefits()
+
+
 post_save.connect(_check_level_change, sender=Sponsor)
 
 
@@ -330,4 +334,6 @@ def _denorm_weblogo(sender, instance, created, **kwargs):
             sponsor = instance.sponsor
             sponsor.sponsor_logo = instance
             sponsor.save()
+
+
 post_save.connect(_denorm_weblogo, sender=SponsorBenefit)
diff --git a/symposion/teams/admin.py b/symposion/teams/admin.py
index 1a27c7ee..a8c3bec7 100644
--- a/symposion/teams/admin.py
+++ b/symposion/teams/admin.py
@@ -13,4 +13,5 @@ class MembershipAdmin(VersionAdmin):
     list_filter = ["team"]
     search_fields = ["user__username"]
 
+
 admin.site.register(Membership, MembershipAdmin)
diff --git a/symposion/teams/backends.py b/symposion/teams/backends.py
index 0effdc2d..a882bf5d 100644
--- a/symposion/teams/backends.py
+++ b/symposion/teams/backends.py
@@ -16,16 +16,16 @@ class TeamPermissionsBackend(object):
         if user_obj.is_anonymous() or obj is not None:
             return set()
         if not hasattr(user_obj, "_team_perm_cache"):
-            # Member permissions        
+            # Member permissions
             memberships = Team.objects.filter(
-                Q(memberships__user=user_obj),                                   
+                Q(memberships__user=user_obj),
                 Q(memberships__state="member"),
             )
             perms = memberships.values_list(
                 "permissions__content_type__app_label",
                 "permissions__codename"
             ).order_by()
-            permissions = ["%s.%s" % (ct, name) for ct, name in perms] 
+            permissions = ["%s.%s" % (ct, name) for ct, name in perms]
             # Manager permissions
             memberships = Team.objects.filter(
                 Q(memberships__user=user_obj),
@@ -35,7 +35,7 @@ class TeamPermissionsBackend(object):
                 "manager_permissions__content_type__app_label",
                 "manager_permissions__codename"
             ).order_by()
-            permissions += ["%s.%s" % (ct, name) for ct, name in perms]  
+            permissions += ["%s.%s" % (ct, name) for ct, name in perms]
             user_obj._team_perm_cache = set(permissions)
         return user_obj._team_perm_cache
 
diff --git a/symposion/teams/models.py b/symposion/teams/models.py
index 774dfbd8..f6ab7253 100644
--- a/symposion/teams/models.py
+++ b/symposion/teams/models.py
@@ -69,6 +69,7 @@ class Team(models.Model):
         verbose_name = _('Team')
         verbose_name_plural = _('Teams')
 
+
 MEMBERSHIP_STATE_CHOICES = [
     ("applied", _("applied")),
     ("invited", _("invited")),
@@ -93,4 +94,5 @@ class Membership(models.Model):
         verbose_name = _("Membership")
         verbose_name_plural = _("Memberships")
 
+
 reversion.register(Membership)
diff --git a/symposion/utils/mail.py b/symposion/utils/mail.py
index ed90eeb1..91e37891 100644
--- a/symposion/utils/mail.py
+++ b/symposion/utils/mail.py
@@ -53,16 +53,6 @@ def __send_email__(template_prefix, to, kind, **kwargs):
 
     from_email = settings.DEFAULT_FROM_EMAIL
 
-    try:
-        bcc_email = settings.ENVELOPE_BCC_LIST
-    except AttributeError:
-        bcc_email = None
-
-    try:
-        bcc_email = settings.ENVELOPE_BCC_LIST
-    except AttributeError:
-        bcc_email = None
-
     email = EmailMultiAlternatives(subject, message_plaintext, from_email, to)
     email.attach_alternative(message_html, "text/html")
     email.send()