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Instance variables vs. class variables in Python

...he attributes only once per class and not per instance. If there would be more than one instance (which won't happen), all instance should have the same configuration. I wonder which of the following options would be better or more "idiomatic" Python. ...
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Get the name of the currently executing method

$0 is the variable for the top level Ruby program, but is there one for the current method? 5 Answers ...
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Centering a div block without the width

... Update 27 Feb 2015: My original answer keeps getting voted up, but now I normally use @bobince's approach instead. .child { /* This is the item to center... */ display: inline-block; } .parent { /* ...and this is its parent container. */ text-...
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Available text color classes in Bootstrap

...s the title at the navigation bar. I want to give those texts different colors. For this purpose I'm using a separate CSS file, but I want to do this using bootstrap's CSS file. ...
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jQuery disable/enable submit button

...when focus is moved away from the input (e.g. someone clicks off the input or tabs out of it). Try using keyup instead: $(document).ready(function() { $(':input[type="submit"]').prop('disabled', true); $('input[type="text"]').keyup(function() { if($(this).val() != '') { ...
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Learning Ruby on Rails

As it stands now, I'm a Java and C# developer. The more and more I look at Ruby on Rails, the more I really want to learn it. ...
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Getting distance between two points based on latitude/longitude

I tried implementing this formula: http://andrew.hedges.name/experiments/haversine/ The aplet does good for the two points I am testing: ...
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How long does it take for GitHub page to show changes after changing index.html

I am just wondering how long does it take for GitHub page to show the new items that I have added to the repository. 3 Answ...
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What is JSON and why would I use it?

... JSON (JavaScript Object Notation) is a lightweight format that is used for data interchanging. It is based on a subset of JavaScript language (the way objects are built in JavaScript). As stated in the MDN, some JavaScript is not JSON, and some JSON is not JavaScript. An exa...
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How to ignore SSL certificate errors in Apache HttpClient 4.0

How do I bypass invalid SSL certificate errors with Apache HttpClient 4.0? 23 Answers ...