django matching query does not exist.

                                matching query does not exist.

刚开始的代码是这样的，group表在数据库中是空的

<pre name="code" class="python">email = '[e-mail]'name = 'develop'if not Group.objects.get(email=email):    group = Group()    group.name = name    group.email = email    group.save() 

这样执行代码后，一直报错 matching query does not exist. 查了一下官方文档，是使用get函数引起的错误。使用get方法时，当找不到匹配的query时，就会报DoesNotExist exception.代码这样改一下就可以了：

email = '[e-mail]'name = 'develop'try:    Group.objects.get(email=email):except Group.DoesNotExist:    group = Group()    group.name = name    group.email = email    group.save()