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Abstract methods in Python [duplicate]

...what a metaclass is, don't worry about it. :-) – kindall Dec 8 '10 at 0:15 1 The linked tutorial ...
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Why does the C preprocessor interpret the word “linux” as the constant “1”?

Why does the C preprocessor in GCC interpret the word linux (small letters) as the constant 1 ? 5 Answers ...
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How to call Base Class's __init__ method from the child class? [duplicate]

... If you pass BaseClass to super, it'll skip over BaseClass and call object.__init__, which is almost certainly not what you want. – abarnert Oct 6 '13 at 7:29 1 ...
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Google Docs/Drive - number the headings

... If you want something more easy, there is a Google Add-On called "Table of Contents" that will allow you to number your headings. To install this add-on: Click on the Add-Ons > Get Add-Ons. Click on the "Table of Contents" icon or search for this addon to install it The...
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What is the formal difference in Scala between braces and parentheses, and when should they be used?

...ut this, but I gave up in the end, as the rules are somewhat diffuse. Basically, you’ll have to get the hang of it. Perhaps it is best to concentrate on where curly braces and parenthesis can be used interchangeably: when passing parameters to method calls. You may replace parenthesis with curly b...
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How to use filter, map, and reduce in Python 3

... longer return lists: [...] map() and filter() return iterators. If you really need a list, a quick fix is e.g. list(map(...)), but a better fix is often to use a list comprehension (especially when the original code uses lambda), or rewriting the code so it doesn’t need a list at all. Particular...
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How to check if a string array contains one string in JavaScript? [duplicate]

... There is an indexOf method that all arrays have (except Internet Explorer 8 and below) that will return the index of an element in the array, or -1 if it's not in the array: if (yourArray.indexOf("someString") > -1) { //In the array! } else { //...
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How to clear the interpreter console?

Like most Python developers, I typically keep a console window open with the Python interpreter running to test commands, dir() stuff, help() stuff , etc. ...
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Why aren't python nested functions called closures?

...s in Python, and they match the definition of a closure. So why are they called nested functions instead of closures ? ...
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What optimizations can GHC be expected to perform reliably?

...has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances. ...