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Why are Python's 'private' methods not actually private?

...utes of their superclasses. It's not designed to prevent deliberate access from outside. For example: >>> class Foo(object): ... def __init__(self): ... self.__baz = 42 ... def foo(self): ... print self.__baz ... >>> class Bar(Foo): ... def __init...
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Remove refs/original/heads/master from git repo after filter-branch --tree-filter?

...e)" refs/original/ | xargs -n 1 git update-ref -d (That's taken directly from the filter-branch manpage.) This doesn't apply to you, but to others who may find this: If you do a filter-branch which removes content taking up significant disk space, you might also want to run git reflog expire --ex...
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What is so bad about singletons? [closed]

... Paraphrased from Brian Button: They are generally used as a global instance, why is that so bad? Because you hide the dependencies of your application in your code, instead of exposing them through the interfaces. Making something glob...
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How to add an email attachment from a byte array?

... FWIW, Mono's Attachment class calls Dispose on the content stream, and from a quick test case, .NET 4.0 does the same. I'm not super-amused that this is the case, but there it is. – Matt Enright May 19 '11 at 22:12 ...
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Is there a way to measure how sorted a list is?

...hat appear out of order according to some ordering < on the set of T's. From Wikipedia: Formally, let A(1), A(2), ..., A(n) be a sequence of n numbers.If i < j and A(i) > A(j), then the pair (i,j) is called an inversion of A. The inversion number of a sequence is one common measure of its ...
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Const in JavaScript: when to use it and is it necessary?

I've recently come across the const keyword in JavaScript. From what I can tell, it is used to create immutable variables , and I've tested to ensure that it cannot be redefined (in Node.js): ...
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How to prevent long words from breaking my div?

Ever since switching from TABLE-layout to DIV-layout, one common problem remains: 26 Answers ...
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Where can I learn how to write C code to speed up slow R functions? [closed]

...y efficient) C code one can study, and CRAN has hundreds of packages, some from authors you trust. That provides real, tested examples to study and adapt. But as Josh suspected, I lean more towards C++ and hence Rcpp. It also has plenty of examples. Edit: There were two books I found helpful: T...
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What's the difference between ViewData and ViewBag?

...e you are blaming microsoft? If no viewdata how could we bind dropdownlist from model. (I don't think using selectlist inside model would be a good idea) – Subin Jacob Nov 13 '13 at 10:46 ...
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Redirecting to URL in Flask

... You have to return a redirect: import os from flask import Flask,redirect app = Flask(__name__) @app.route('/') def hello(): return redirect("http://www.example.com", code=302) if __name__ == '__main__': # Bind to PORT if defined, otherwise default to 500...