reordering import statements using isort

modelviz.py

@@ -28,7 +28,8 @@ __contributors__ = [
    "Justin Findlay <jfindlay@gmail.com>",
    ]
 
-import getopt, sys
+import getopt
+import sys
 
 from django.core.management import setup_environ
 
@@ -39,11 +40,11 @@ except ImportError:
 else:
     setup_environ(settings)
 
-from django.template import Template, Context
 from django.db import models
 from django.db.models import get_models
-from django.db.models.fields.related import \
-    ForeignKey, OneToOneField, ManyToManyField
+from django.db.models.fields.related import (ForeignKey, ManyToManyField,
+                                             OneToOneField)
+from django.template import Context, Template
 
 try:
     from django.db.models.fields.generic import GenericRelation