Convert dictionary key to object name in Python

I've got a dictionary whose keys are country names, and its values are an object of the class Country, which has several attributes (population, area, etc.). For example: {"Chile":Country(17000000,124234,...)} However, when I try to reach a countr...
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2017-10-04 23:10 (0) Answers

How to remove `duplicates' in list of instances

I have a list of instances of a certain class. This list contains `duplicates', in the sense that duplicates share the exact same attributes. I want to remove the duplicates from this list. I can check whether two instances share the same attributes...
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2017-10-04 16:10 (2) Answers

ER diagram covert to Class Diagram

I have drawn the ER diagram. I have attached the images below please see the image ER diagram of Defect management system [1]: https://i.stack.imgur.com/0fZyy.jpg This is a class diagram which I tried my self. I have attached the image below I do...
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2017-10-04 07:10 (0) Answers

How do I cycle through images in Tkinter?

I want to have the button's image cycle through all possible pizza images, but instead it throws the following error when I click on it: self.config(image=next(self.images)) AttributeError: 'buttonInitialize' object has no attribute 'config' Here'...
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2017-10-04 04:10 (1) Answers

NodeJS async/await class mysql/mariadb

I tried to something I thought would be simple using: nodejs 8.6, MariaDB, MySQL2/promise and classes. But it does not work: Here is the simple example: const mysql = require('mysql2/promise'); class mySQLClass { constructor() { this....
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2017-10-04 00:10 (1) Answers

How class/object relationships implemented in PHP

hypernym-hyponym (supertype-subtype) relations between types (classes) defining a taxonomic hierarchy, where for a subsumption relation: a hyponym (subtype, subclass) has a type-of (is-a) relationship with its hypernym (supertype, superclass); ho...
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2017-10-03 20:10 (0) Answers

Wordpress's favicon with custom template

I'm building a website with wordpress and I'm struggling with the favicon. Here's the problem: let's say that, for some reason, you want to write your code in the backend (using the only static code, for example, if you need to add some php directly ...
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2017-10-03 17:10 (2) Answers

Get PHP class property from array

I have an array looking something like this: Array ( [0] => my_val_one [1] => my_val_two ) I then have an object looking something like this: stdClass Object ( [id] => 123123 [name] => my_name [m...
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2017-10-03 15:10 (2) Answers

C# static classes. How to improve the code?

As an ex-Matlab user, I have been finding it hard to work with classes because in Matlab I am not used to working with classes. Now, I have C# Winforms project, and it is working okay but I am feeling that it has code smells and has wrong design pat...
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2017-10-02 11:10 (1) Answers

C# how to reference the class from assembly

I wanna dynamic generate a Class,and use the class as T in List.But I can't make the dymanic Class as T in List,I need your help and give me some advice,or the article relation.Here is my way to finalize: I have generated a dynamic assemly.It contai...
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2017-09-29 14:09 (0) Answers