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Python function overloading

... What you are asking for is called multiple dispatch. See Julia language examples which demonstrates different types of dispatches. However, before looking at that, we'll first tackle why overloading is not really what you want in python. Why Not Overl...
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Does Python support multithreading? Can it speed up execution time?

... The GIL does not prevent threading. All the GIL does is make sure only one thread is executing Python code at a time; control still switches between threads. What the GIL prevents then, is making use of more than one CPU core or separate CPUs to run threads in...
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Comparing two NumPy arrays for equality, element-wise

...two NumPy arrays for equality (where equality is defined as: A = B iff for all indices i: A[i] == B[i] )? 6 Answers ...
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How to show and update echo on same line

...hat saves me from going to a new line each time I echo something. -e will allow me to interpret backslash escape symbols. Guess what escape symbol I want to use for this: \r. Yes, carriage return would send me back to the start and it will visually look like I am updating on the same line. So the...
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How do I read any request header in PHP

... IF: you only need a single header, instead of all headers, the quickest method is: <?php // Replace XXXXXX_XXXX with the name of the header you need in UPPERCASE (and with '-' replaced by '_') $headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX']; ELSE IF: you run PHP...
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C# vs C - Big performance difference

... Since you never use 'root', the compiler may have been removing the call to optimize your method. You could try to accumulate the square root values into an accumulator, print it out at the end of the method, and see what's going on. Edit : see Jalf's answer below ...
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Logical operators for boolean indexing in Pandas

...Error: The truth value of an array is ambiguous. Use a.empty, a.any() or a.all(). when used as a boolean value. That's because its unclear when it should be True or False. Some users might assume they are True if they have non-zero length, like a Python list. Others might desire for it to be True ...
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Should I be using object literals or constructor functions?

....bar; } However, this is not favorable with regards to encapsulation: Ideally, all the data + behaviour associated with an entity should live together. share | improve this answer | ...
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Is it possible to import a whole directory in sass using @import?

...rails/sass-rails, features glob importing. @import "foo/*" // import all the files in the foo folder @import "bar/**/*" // import all the files in the bar tree To answer the concern in another answer "If you import a directory, how can you determine import order? There's no way that doesn't...
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What integer hash function are good that accepts an integer hash key?

...mple) and has no common factors with it. This way the hash function covers all your hash space uniformly. Edit: The biggest disadvantage of this hash function is that it preserves divisibility, so if your integers are all divisible by 2 or by 4 (which is not uncommon), their hashes will be too. Thi...