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What is the purpose of the word 'self'?

What is the purpose of the self word in Python? I understand it refers to the specific object created from that class, but I can't see why it explicitly needs to be added to every function as a parameter. To illustrate, in Ruby I can do this: ...
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For a boolean field, what is the naming convention for its getter/setter?

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Filter Java Stream to 1 and only 1 element

I am trying to use Java 8 Stream s to find elements in a LinkedList . I want to guarantee, however, that there is one and only one match to the filter criteria. ...
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Spring 3.0 - Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springfra

Any ideas what could be the cause of this? 15 Answers 15 ...
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How do I create a readable diff of two spreadsheets using git diff?

We have a lot of spreadsheets (xls) in our source code repository. These are usually edited with gnumeric or openoffice.org, and are mostly used to populate databases for unit testing with dbUnit . There are no easy ways of doing diffs on xls files that I know of, and this makes merging extremely...
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HTTP URL Address Encoding in Java

My Java standalone application gets a URL (which points to a file) from the user and I need to hit it and download it. The problem I am facing is that I am not able to encode the HTTP URL address properly... ...
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Fast and Lean PDF Viewer for iPhone / iPad / iOS - tips and hints?

There has been many Questions recently about drawing PDF's. 3 Answers 3 ...
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Are soft deletes a good idea? [duplicate]

Are soft deletes a good idea or a bad idea? 15 Answers 15 ...
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Why is address zero used for the null pointer?

In C (or C++ for that matter), pointers are special if they have the value zero: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn't dangerous; when I call malloc it returns a pointer with the value zero if it can't get me memory; I use ...
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SQL (MySQL) vs NoSQL (CouchDB) [closed]

I am in the middle of designing a highly-scalable application which must store a lot of data. Just for example it will store lots about users and then things like a lot of their messages, comments etc. I have always used MySQL before but now I am minded to try something new like couchdb or similar w...