Modelmommy class library and how to use in Python

Modelmommy is a Python library to help quickly create model instances during testing and development.It provides a simplified method to generate test data for use in unit testing, integrated testing and functional testing. The use of modelmommy is as follows: 1. Install the ModelmomMy Library: You can use the PIP command to install the Modelmommy library: `PIP Install Model_mommy` 2. Import the Modelmommy library: In the Python script, you need to import the Modelmommy library to use the Modelmommy function in your test file.Use the following statement to import the Modelmommy library: python from model_mommy import mommy 3. Create a model instance: Modelmommy allows you to use a line of code to create a model.You can use the method of `Mommy.make ()` to create an instance, as shown below: python instance = mommy.make(MyModel) This will create an instance of a MyModel model and assign it to the `Instance` variable. 4. Custom model field: You can customize the field of the model as needed.You can use the parameters of the field to define your value in the method of the `Make ()" method, as shown below: python instance = mommy.make(MyModel, field1="value1", field2="value2") This will create an instance of a MyModel model, and set the value of the `Field1` field to` Value1 "`, and the value of the `Field2` field to" Value2 "`. 5. Create multiple model instances: If you need to create multiple instances, you can use the second parameter of the `Make ()" method to specify the number of instances to be created.As follows: python instances = mommy.make(MyModel, _quantity=5) This will create examples of 5 MyModel models and assign them to the `Instances` list. 6. Automatically fill the external key association: If your model contains an external key association field, Modelmommy will automatically create related examples.As follows: python instance = mommy.make(MyModel, foreign_key_field=mommy.make(RelatedModel)) This will create an instance of a MyModel model and set its associated `Foreign_key_field` field to an instance of a RelatedModel model. The above is the basic use of the Modelmommy library.You can use Modelmommy to create model instances according to your needs, and use these instances during the test.