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Step-by-step debugging with IPython

From what I have read, there are two ways to debug code in Python: 15 Answers 15 ...
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Nested classes' scope?

I'm trying to understand scope in nested classes in Python. Here is my example code: 6 Answers ...
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How can I preview a merge in git?

I have a git branch (the mainline, for example) and I want to merge in another development branch. Or do I? 11 Answers ...
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What are Unwind segues for and how do you use them?

... In a Nutshell An unwind segue (sometimes called exit segue) can be used to navigate back through push, modal or popover segues (as if you popped the navigation item from the navigation bar, closed the popover or dismissed the modally presented view controlle...
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Is Meyers' implementation of the Singleton pattern thread safe?

Is the following implementation, using lazy initialization, of Singleton (Meyers' Singleton) thread safe? 6 Answers ...
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Mercurial: how to amend the last commit?

I'm looking for a counter-part of git commit --amend in Mercurial, i.e. a way to modify the commit which my working copy is linked to. I'm only interested in the last commit, not an arbitrary earlier commit. ...
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Get image data url in JavaScript?

I have a regular HTML page with some images (just regular <img /> HTML tags). I'd like to get their content, base64 encoded preferably, without the need to redownload the image (ie. it's already loaded by the browser, so now I want the content). ...
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How can I get the client's IP address in ASP.NET MVC?

I'm totally new to the ASP.NET MVC stack, and I was wondering what happened to the simple Page object and the Request ServerVariables object? ...
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Best Timer for using in a Windows service

I need to create some windows service which will execute every N period of time. The question is: Which timer control should I use: System.Timers.Timer or System.Threading.Timer one? Does it influence on something? ...
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How to limit the maximum value of a numeric field in a Django model?

Django has various numeric fields available for use in models, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a ...