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Showing posts with the label Oop

Don't Create Object When If Condition Is Not Met In __init__()

I have a class that maps a database object class MyObj: def __init__(self): ...SQL requ… Read more Don't Create Object When If Condition Is Not Met In __init__()

Does Python Have Class Prototypes (or Forward Declarations)?

I have a series of Python classes in a file. Some classes reference others. My code is something li… Read more Does Python Have Class Prototypes (or Forward Declarations)?

Python Multiple Inheritance Constructor Not Called When Using Super()

Consider the following code: class A(object): def __init__(self): pass class B(object):… Read more Python Multiple Inheritance Constructor Not Called When Using Super()

Calling A Variable From Another Method In The Same Class

My scenario I only have one class with two methods. In the first method I store values in a variabl… Read more Calling A Variable From Another Method In The Same Class

Assign External Function To Class Variable In Python

I am trying to assign a function defined elsewhere to a class variable so I can later call it in on… Read more Assign External Function To Class Variable In Python

How Do I Subclass Matplotlib's Figure Class?

I'm trying to add some custom behaviors and properties to my figures, but I'm having troubl… Read more How Do I Subclass Matplotlib's Figure Class?

Python Class Setup For Serialization Without Pickle

Scenario I am looking for an object oriented approach in python that makes it possible to save an i… Read more Python Class Setup For Serialization Without Pickle

How To Replace Kivy Widgets On Callback?

I'm new to Python and Kivy, and I'm trying to create multipage display of letters of the br… Read more How To Replace Kivy Widgets On Callback?

Python: Immutable Private Class Variables?

Is there any way to translate this Java code into Python? class Foo { final static private List… Read more Python: Immutable Private Class Variables?

Python Calling Methods Of Class Using Different Ways

I have some class: class RSA: CONST_MOD=2 def __init__(self): print 'created' def fas… Read more Python Calling Methods Of Class Using Different Ways

Python Inheritance: Choose Parent Class Using Argument

I'm having trouble designing some classes. I want my user to be able to use the Character() cla… Read more Python Inheritance: Choose Parent Class Using Argument

Python Tkinter After Event Oops Implementation

I am very new to Python and even to oops, I want to convert this stackoverflow solution to oops, bu… Read more Python Tkinter After Event Oops Implementation

Python __init__ Method In Inherited Class

I would like to give a daughter class some extra attributes without having to explicitly call a new… Read more Python __init__ Method In Inherited Class

Python Class Inheritance And __dict__ Lookup

Let's say I define class A: >>> class A: ... a = 1 ... class SubA: ... … Read more Python Class Inheritance And __dict__ Lookup

How To Extend Oraclecursor Class From Cx_oracle

Using Python 2.7.12 and package cx_Oracle I'm trying to create an extended class of the what th… Read more How To Extend Oraclecursor Class From Cx_oracle

Attributeerror: 'spider' Object Has No Attribute 'table'

I'm working with scrapy. I have a spider that starts with: class For_Spider(Spider): name … Read more Attributeerror: 'spider' Object Has No Attribute 'table'

Implementing A Decorator To Limit Setters

I have a class with a handful of instance variables, which I set through functions decorated with t… Read more Implementing A Decorator To Limit Setters

How Does Everything Is An Object Even Work?

I understand the principal theory behind Everything is an Object but I really don't understand … Read more How Does Everything Is An Object Even Work?

Python Closure + Oop

I'm trying to do something a bit strange (at least to me) with python closure. Say I have 2 cla… Read more Python Closure + Oop

How To Make A Class Attribute Exclusive To The Super Class

I have a master class for a planet: class Planet: def __init__(self,name): self.name =… Read more How To Make A Class Attribute Exclusive To The Super Class