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Python loop that also accesses previous and next values

How can I iterate over a list of objects, accessing the previous, current, and next items? Like this C/C++ code, in Python? ...
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What is a bus error?

What does the "bus error" message mean, and how does it differ from a segfault? 15 Answers ...
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Named regular expression group “(?Pregexp)”: what does “P” stand for?

In Python, the (?P<group_name>…) syntax allows one to refer to the matched string through its name: 3 Answers ...
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C++ compile error: has initializer but incomplete type

I am coding in Eclipse and have something like the following: 1 Answer 1 ...
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How is the java memory pool divided?

I’m currently monitoring a Java application with jconsole. The memory tab lets you choose between: 4 Answers ...
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Where is Vagrant saving changes to the VM?

I am just starting with Vagrant and I am having a little trouble understanding a few details. I have read through the docs but still am missing a basic concept. When I want to start a Vagrant box I run: ...
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AngularJS: disabling all form controls between submit and server response

I have a dilemma about what is the best (and correct) approach if I want to disable form controls (or at least make them unavailable for user interaction) during a period of time when user clicks sort of "Save" or "Submit" button and data travelling over the wire. I don't want to use JQuery (which i...
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How to get next/previous record in MySQL?

Say I have records with IDs 3,4,7,9 and I want to be able to go from one to another by navigation via next/previous links. The problem is, that I don't know how to fetch record with nearest higher ID. ...
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How do I make a fully statically linked .exe with Visual Studio Express 2005?

My current preferred C++ environment is the free and largely excellent Microsoft Visual Studio 2005 Express edition. From time to time I have sent release .exe files to other people with pleasing results. However recently I made the disturbing discovery that the pleasing results were based on more l...
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What's the cleanest way of applying map() to a dictionary in Swift?

I'd like to map a function on all keys in the dictionary. I was hoping something like the following would work, but filter cannot be applied to dictionary directly. What's the cleanest way of achieving this? ...