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Instance attribute attribute_name defined outside __init__

...assed to the parent through Super. This makes extending some classes very difficult, because the parent class will operate on the child specific class attributes in ways that are undesireable. This is why I have ignored this particular warning myself. I also like your idea about using None and initi...
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How do I improve ASP.NET MVC application performance?

...tion Utilize ETags and expiration - Write your custom ActionResult methods if necessary Consider using the RouteName to organize your routes and then use it to generate your links, and try not to use the expression tree based ActionLink method. Consider implementing a route resolution caching strat...
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Http 415 Unsupported Media type error with JSON

... charset to be set in the Content-Type. My guess is that they're checking if the string "application/json; charset=utf-8" == "application/json". That being said, JSON must be utf-8 so it's perfectly valid to leave out the charset. – Tim Martin Mar 28 '16 at 3...
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Finding quaternion representing the rotation from one vector to another

... @sinisterchipmunk Actually, if v1 = v2, crossproduct would be (0,0,0) and w would be positive, which normalizes to identity. According to gamedev.net/topic/… it should work just fine also for v1 = -v2 and in their close vicinity. ...
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Tool to track #include dependencies [closed]

... If you have access to GCC/G++, then the -M option will output the dependency list. It doesn't do any of the extra stuff that the other tools do, but since it is coming from the compiler, there is no chance that it will pick ...
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Finding last occurrence of substring in string, replacing that

...Magyar yes, container[a:b] slices from a up to b-1 index of the container. If 'a' is omitted, then it defaults to 0; if 'b' is omitted it defaults to len(container). The plus operator just concatenates. The rfind function as you pointed out returns the index around which the replacement operation sh...
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ASP.NET MVC Relative Paths

...~/Scripts/jquery-1.2.6.js")%> make the server render the path, whereas, if you used "/Scripts/jquery-1.2.6.js", it would just be served straight up to the client, therefore, reducing one more thing the server has to do? I thought i read somewhere the more you can avoid having the server process,...
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visual studio not remembering open documents & startup project

... I believe this information all lives in your .suo file and/or .user file. If they've become corrupt, VS will struggle, so it'll revert to the default. Maybe try exiting VS, deleting the .suo and/or .user files, start VS and set it up how you want, restart it again and see if it remembered the sett...
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What is the best way to implement a “timer”? [duplicate]

..."best" is defined as most reliable (least number of misfires) and precise. If I specify an interval of 15 seconds, I want the target method invoked every 15 seconds, not every 10 - 20 seconds. On the other hand, I don't need nanosecond accuracy. In this example, it would be acceptable for the method...
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GitHub README.md center image

...;</div>. Beware that there's no guarantee the image will be centered if your repository is forked in a different hosting environment (Codeplex, BitBucket, ...) or if the document isn't read through a browser (Sublime Text Markdown preview, MarkdownPad, VisualStudio Web Essentials Markdown prev...