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How can I dynamically create derived classes from a base class

... This bit of code allows you to create new classes with dynamic names and parameter names. The parameter verification in __init__ just does not allow unknown parameters, if you need other verifications, like type, or that they are mandatory, just add the logic there: class BaseClass(object):...
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Best practice: PHP Magic Methods __set and __get [duplicate]

... I have been exactly in your case in the past. And I went for magic methods. This was a mistake, the last part of your question says it all : this is slower (than getters/setters) there is no auto-completion (and this is a major problem actually), and type management b...
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$(document).ready equivalent without jQuery

... There is a standards based replacement,DOMContentLoaded that is supported by over 98% of browsers, though not IE8: document.addEventListener("DOMContentLoaded", function(event) { //do work }); jQuery's native function is much more c...
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How to check for Is not Null And Is not Empty string in SQL server?

...we check in a SQL Server WHERE condition whether the column is not null and not the empty string ( '' )? 7 Answers ...
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Why can't I use a list as a dict key in python?

...nt's values, for instance when checking (in-)equality. Many would - understandably - expect that you can use any list [1, 2] to get the same key, where you'd have to keep around exactly the same list object. But lookup by value breaks as soon as a list used as key is modified, and for lookup by iden...
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly

I have a dataframe with ~300K rows and ~40 columns. I want to find out if any rows contain null values - and put these 'null'-rows into a separate dataframe so that I could explore them easily. ...
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What is a higher kinded type in Scala?

...of polymorphism/abstraction. It means the same thing for polymorphic types and values. Concretely, a higher-order abstraction abstracts over something that abstracts over something. For types, the term "higher-kinded" is a special-purpose version of the more general "higher-order". Thus, the higher-...
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How much space can your BitBucket account have?

I created a BitBucket account today, and I love the fact that they allow you to have unlimited public/private repositories. However, I didn't find the size limit of your account? Does anyone know where to find it? Github offered 300mb if I remember correctly. ...
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How can I add some small utility functions to my AngularJS application?

... EDIT 7/1/15: I wrote this answer a pretty long time ago and haven't been keeping up a lot with angular for a while, but it seems as though this answer is still relatively popular, so I wanted to point out that a couple of the point @nicolas makes below are good. For one, injecting...
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I've found my software as cracked download on Internet, what to do?

...cation. Today I found the first web site where people download it cracked, and I was wondering if any of you fellow programmers know how to react to such stuff? ...