Removed unnecessary imports and adhered to PEP 8 guidelines

widget_robo_mommy/Assignments/admin.py

 from django.contrib import admin
 from .models import Assignment, Course
 
+
 class AssignmentAdmin(admin.ModelAdmin):
     model = Assignment
 
+
 class CourseAdmin(admin.ModelAdmin):
     model = Course
 
+
 admin.site.register(Assignment, AssignmentAdmin)
 admin.site.register(Course, CourseAdmin)

widget_robo_mommy/Assignments/models.py

 from django.db import models
 
+
 class Course(models.Model):
     code = models.CharField(max_length=10, blank=True, null=True)
     title = models.CharField(max_length=255, blank=True, null=True)
     section = models.CharField(max_length=3, blank=True, null=True)
 
+
 class Assignment(models.Model):
     name = models.CharField(max_length=255, blank=True, null=True)
     description = models.TextField(blank=True, null=True)