Multiple calling @property that reduce list Question: I’m training my skills of design patterns. With a Factory schema i tried to get and pop example numbers from a imited list. With initialization of seccond account i recieved an IndexError. In debug mote i noticed that between initialisation of acc01 and acc02 I have a 4 …
How to add type hint to python factory_boy Factory classes? Question: So we are working with some existing code where there is an implementation of factories classes from the factory_boy project which create instances of other classes for example class TableFactory(Factory): class Meta: model = Table id = LazyAttribute(lambda x: uuid4()) color = SubFactory(ColorFactory) reference …
Find the minimum number of steps to half the sum of elements in a list where each step halves an item in the list in O(N) Question: I came across an interview question that went like this: There are factories in an area which produce a pollutive gas and filters are to be installed at …
Assign a command to my Tkinter buttons by looping over them Question: I would like to use a forloop to give my buttons a function in Tkinter. When I do it like this I get an error message, that those buttons are not defined. I tried several solution, but it did not work. I would …
How to use Faker from Factory_boy Question: Factory_boy uses fake-factory (Faker) to generate random values, I would like to generate some random values in my Django tests using Faker directly. Factory_boy docs suggests using factory.Faker and its provider as : class RandomUserFactory(factory.Factory): class Meta: model = models.User first_name = factory.Faker(‘first_name’) But this isn’t generating any …
Factory Boy random choice for a field with field option "choices" Question: When a field in a Django model has the option choices, see Django choices field option, it utilises an iterable containing iterables of 2 items to define which values are allowed. For example: Models class IceCreamProduct(models.Model): PRODUCT_TYPES = ( (0, ‘Soft Ice Cream’), …
Pickle a dynamically parameterized sub-class Question: I have a system which commonly stores pickled class types. I want to be able to save dynamically-parameterized classes in the same way, but I can’t because I get a PicklingError on trying to pickle a class which is not globally found (not defined in simple code). My problem …
Using base class constructor as factory in Python? Question: I’m using base class constructor as factory and changing class in this constructor/factory to select appropriate class — is this approach is good python practice or there are more elegant ways? I’ve tried to read help about metaclasses but without big success. Here example of what …
