Import sorting and other code cleaning

src/personalisation/admin.py

@@ -4,18 +4,22 @@ from personalisation import models
 
 
 class TimeRuleAdminInline(admin.TabularInline):
+    """Inline the Time Rule into the administration interface for segments"""
     model = models.TimeRule
     extra = 0
 
 class ReferralRuleAdminInline(admin.TabularInline):
+    """Inline the Referral Rule into the administration interface for segments"""
     model = models.ReferralRule
     extra = 0
 
 class VisitCountRuleAdminInline(admin.TabularInline):
+    """Inline the Visit Count Rule into the administration interface for segments"""
     model = models.VisitCountRule
     extra = 0
 
 class SegmentAdmin(admin.ModelAdmin):
+    """Add the inlines to the Segment admin interface"""
     inlines = (TimeRuleAdminInline, ReferralRuleAdminInline, VisitCountRuleAdminInline)