Python TypeError:无法连接'str'和'int'对象-lambda
我使用Django FactoryBoy进行测试。这是我的代码:Python TypeError:无法连接'str'和'int'对象-lambda,python,django,Python,Django,我使用Django FactoryBoy进行测试。这是我的代码: import Factory class UserFactory(factory.Factory): FACTORY_FOR = User username = factory.Sequence(lambda n: 'user' + n) email = 'test@test.com' password = 'sha1$$a4483ce7bd7083999bef6a74117a443239e67f
import Factory
class UserFactory(factory.Factory):
FACTORY_FOR = User
username = factory.Sequence(lambda n: 'user' + n)
email = 'test@test.com'
password = 'sha1$$a4483ce7bd7083999bef6a74117a443239e67fac'
这是我的错误:
TypeError:无法连接'str'和'int'对象
如何修复它?最快的解决方案是
username = factory.Sequence(lambda n: 'user' + str(n))
之所以会出现这种情况,是因为String和Int在Python中是两种独立的类型,因此需要进行类型转换
更清洁的方法是
username = factory.Sequence(lambda n: "user{0}".format(n))
username = factory.Sequence(lambda n: "user{0}".format(n))