Questions tagged [subclassing]
A subclass, "derived class", heir class, or child class is a modular, derivative class that inherits one or more language entities from one or more other classes.
subclassing
841
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switching from subclassed model to functional api HOW
I was replicating a paper that has a complex model built in pytorch and wanted it in tensorflow for ease of use (I have been working for a while with tensorflow seems user friendly more for me please ...
1
vote
1
answer
97
views
How does JavaScript "decide" how to print a class name?
I'm trying to write an inheritence logic where I clone an input class and inherit from remaining parent classes. In order to do that, I need to create a new class, deep copying one of the classes ...
- 6,571
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0
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32
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Is it possible to define a subclass in python that creates a new atomic attribute?
I'll call an "atomic" attribute of a python class to be one from which all other user defined attributes derive. For example, the attribute a in the class below is atomic to A because all ...
- 550
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59
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Adding a method to an existing enum in Python
I have an existing enumeration with a number of values defined in package b, and I want to add behavior in the current package a. I understand that you can't directly subclass an enum with existing ...
- 301
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50
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CMFCButton with transparent background
I have developed a class that subclasses from CMFCButton. I load three PNG images (with transparent zones) to the button foreground in the DrawButton function for three states:
Normal
Hovered
Pushed
...
- 89
1
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32
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Subclassing Pandas Series without losing original methods
I'm trying to implement my subclass of pd.Series, but original pd.Series methods don't work as expected and return Nan
class Subclass(pd.Series):
# see https://pandas.pydata.org/pandas-docs/stable/...
- 23
1
vote
2
answers
66
views
Is there a simple way to subclass python's set without redefining all operators?
Is there a way to subclass set, with the binary operator returning the subclassed type, without redefining them ?
example :
class A(set):
pass
a = A([1,2,3]) & A([1,2,4])
a.__class__ == A # ...
- 3,849
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21
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In Pyside2, when I subclass QSqlTableModel how do I write the data method without generating maximum recursion depth errors? [duplicate]
I have a working application in Pyside2 that displays a QSqlTableModel in a QSqlTableView.
Three of the fields display raw seconds, like "6282" meaning six thousand and some seconds into a ...
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41
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why the output of the tape.gradient is None? (Tensorflow)
EPOCHS = 10
LR = 0.001
loss_object = MeanSquaredError()
optimizer = Adam(learning_rate = LR)
load_metrics()
@tf.function
def trainer():
global train_ds, train_loss, model
global optimizer, ...
- 11
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1
answer
62
views
Subclassing dict to give it inital values from a JSON file doesn't work as expected
I come from a C/C++ background
I would like to subclass dict to make one that automatically opens a JSON file.
Here's the code and problem:
class DictFromJSON(dict):
def get_from_file(self, ...
- 1
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21
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How to change object attributes when overloading __getitem__ in np.ndarray subclassing
I have the following code:
class myarray(np.ndarray):
def __new__(cls, input_array):
# Input array is an already formed ndarray instance
# We first cast to be our class type
...
- 2,012
1
vote
1
answer
119
views
How to automatically forward class instance methods to another object's methods?
Regarding the following example code, is there any type-safe way of automatically forwarding any of the prototypal method calls, each to its related method of another object?
class Foo {
greet() {
...
- 1,127
0
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0
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48
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overwrite np.ndarray __getitem__
Target
I'm dealing with 2D time-series data, and never use negative indexing. So I want to subclass np.ndarray that negative and out-of-bound indexing in axis 0 will return a nan-augmented matrix with ...
- 45
3
votes
1
answer
53
views
Is an empty subclass of UIAlertController safe for use with `appearance(whenContainedInInstancesOf:)`
Somebody here on SO wanted to alter the behavior of UIAlertAction buttons in a specific UIAlertController, but not others. (They wanted multi-line button labels for one alert but normal behavior for ...
- 131k
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3
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459
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How to dynamically create a subclass from a given class and enhance/augment the subclass constructor's prototype?
I have an unusual situation where I need to dynamically generate a class prototype then have a reflection tool (which can't be changed) walk the prototype and find all the methods. If I could hard ...
- 1,663