mongoengine.fields.ImproperlyConfigured：找不到PIL库

Question

当我尝试导入具有ImageField的MongoEngine类时，出现错误：

mongoengine.fields.ImproperlyConfigured: PIL library was not found

我的班级结构是这样的：

class TrafficSign(Document):
    name = StringField()
    image = ImageField()
    type = StringField()
    desc = StringField()
    source = StringField()

问题是什么？

Answer 1

您需要安装Pillow，它提供PIL模块。 sudo pip install Pillow（在Windows上删除sudo）应该这样做。