overriding

Overriding method python class of a pip module to update its behavior globally Question: Using OOP I want to do something like from django.contrib import admin class NavigateFormAdmin(admin.ModelAdmin): def render_change_form(self, request, context, add=False, change=False, form_url=”, obj=None): context[‘next_record_id’] = custom_function_to_calculate(context[‘obj’].id) res = super().render_change_form(request, context, add, change, form_url) return res And expect that whenever render_change_form of admin.ModelAdmin …

Custom Standard Errors with Statsmodels / Stargazer Question: I am running a series of OLS regressions in Python, where I am using standard errors that I calculate using a custom function. I am now exporting my regression results into tables, and plan on using the stargazer package (linked here). However, stargazer relies on regression results …

Parent method is not called in Parent Class Question: class A: def __init__(self): self.j = 0 self.calc_i(865) def calc_i(self, i): self.i = 68 * i class B(A): def __init__(self): super().__init__() print("i from B is", self.i) def calc_i(self, i): self.i = 37 * i b = B() The Code above should call the parent class method …

Can you override a function from a class outside of a class in Python Question: Can you override a function from a class, like: class A: def func(): print("Out of A") classA = A # Is something like this possible def classA.func(): print("Overrided!") Wanted Output: Overrided I googled "python override function", "python override function from …

NameError: class is not defined when overriding a class in python Question: Why can’t python seem to find the InterfaceWithNoMenu class class Settings(Screen): class SettingsWithNoMenu(kivy.uix.settings.SettingsWithNoMenu): def __init__(self, *args, **kwargs): self.interface_cls = InterfaceWithNoMenu kivy.uix.settings.SettingsWithNoMenu.__init__( self, *args, **kwargs ) class InterfaceWithNoMenu(kivy.uix.settings.ContentPanel): def add_widget(self, widget): if self.container is not None and len(self.container.children) > 0: raise Exception( ‘ContentNoMenu cannot …

How to override FOR IN loop list behavior? Question: I try to implement list which returns wrapped elements when accessing directly (by index) or via FOR IN loop statement. At present I have following code: class ItemWrappedList(list): def __getitem__(self, y): result = super().__getitem__(y) return f'<item>{result}</item>’ lst = ItemWrappedList([‘1’, ‘2’, ‘3’]) for pos in range(len(lst)): print(lst[pos]) …

When the method __post_init__ doesnt called? Question: I found the issue where was conversation about an explict call of parent’s __post_init__ method using super(), but if I try this: from dataclasses import dataclass @dataclass class A: def __post_init__(self): print("A") @dataclass class B(A): pass b = B() it will output: A So, parents method works without …

How can I avoid code repetition when overriding many properties in a child class in the same way? Question: I have a class in which I have properties that are returning arrays. For simplicity, let’s consider them constant: import numpy as np class MyClass: def __init__(self): self._time = np.array([0, 1, 2, 3]) self._a = np.array([0, …

How to raise an error if child class override parent's method in python? Question: I’m doing a class that will be the basis for another ones and i want to prohibit some methods to be override in some situations and I just don’t know how to do it. Asked By: sbb || Source Answers: You …

How to check if string exists in Enum of strings? Question: I have created the following Enum: from enum import Enum class Action(str, Enum): NEW_CUSTOMER = "new_customer" LOGIN = "login" BLOCK = "block" I have inherited from str, too, so that I can do things such as: action = "new_customer" … if action == Action.NEW_CUSTOMER: …