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How is set() implemented?

I've seen people say that set objects in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have? ...
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How do I print the full value of a long string in gdb?

I want to print the full length of a C-string in GDB. By default it's being abbreviated, how do I force GDB to print the whole string? ...
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Take the content of a list and append it to another list

I am trying to understand if it makes sense to take the content of a list and append it to another list. 7 Answers ...
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Passing multiple error classes to ruby's rescue clause in a DRY fashion

I have some code that needs to rescue multiple types of exceptions in ruby: 3 Answers ...
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Check if array is empty or null

I would like to know how to check if an array is empty or null in jQuery. I tried array.length === 0 but it didn't work. It did not throw any error either. ...
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Import module from subfolder

I want to import subfolders as modules. Therefore every subfolder contains a __init__.py . My folder structure is like this: ...
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from jquery $.ajax to angular $http

I have this piece of jQuery code that works fine cross origin: 4 Answers 4 ...
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Mongoose indexing in production code

Per the Mongoose documentation for MongooseJS and MongoDB / Node.js : 3 Answers ...
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Add a number to each selection in Sublime Text 2, incremented once per selection

Is there a way to add insert a number that is incremented once per cursor in Sublime Text 2? 3 Answers ...
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How to handle multiple heterogeneous inputs with Logstash?

Let's say you have 2 very different types of logs such as technical and business logs and you want: 3 Answers ...