For @cached_property decorated methods, is there a built-in way to iterate through all of these attributes? My use case is that I’d like to clear all cached properties with the del operator without bookkeeping for them manually in something like a list. Here’s a canned example. __init__ could do something fancy like load data from a file that needs to
Tag: properties
Change Value of a Kivy Property from a seperate File
So at the moment im having a problem with Kivy, which i cant resolve. I have a situation where i want to change the Value of a Kivy NumericProperty in a File “A” from another programm “B”, thus that the program “C”, where all the Kivy interface stuff is, detects the change and updates the value on the screen. File
How to perform input validation for read-only instance attributes?
A very similar question was posted here, but there are no accepted answers, no code examples and I don’t really like the idea of using an external library as suggested by the only one answer provided there. The following code allows to define read-only instance attributes: but I would like to validate the user inputs as well. I want to
Using the @property decorator for interrelated attributes within a Python class
This question relates to using the @property decorator within a class in Python. I want to create a class with two public attributes (say a and b). I also want the class to have a further public attribute (say c) that is always equal to some calculation based on the other attributes within the class (say a + b =
Kivy – Bind Label Text To Variable (Python Only)
I have been trying to get my labels to auto-update themselves for quite a while now and I have read over a dozen StackOverflow questions but to no avail. I have an global object that contains an integer value that I want to be displayed with a label inside of one of my widget classes. The widget class looks like
How to make the elements of a NumPy array property settable?
I have a property of a Python object that returns an array. Now, I can set the setter of that property such that the whole array is settable. However, I’m missing how to make the elements by themselves settable through the property. I would expect from a user perspective (given an empty SomeClass class): Now, suppose that SomeClass.array is a
How does the @property decorator work in Python?
I would like to understand how the built-in function property works. What confuses me is that property can also be used as a decorator, but it only takes arguments when used as a built-in function and not when used as a decorator. This example is from the documentation: property’s arguments are getx, setx, delx and a doc string. In the