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Python coding standards/best practices [closed]

...with Python Style Guides, I suggest that you refer the following: Code Like a Pythonista: Idiomatic Python Common mistakes and Warts How not to write Python code Python gotcha share | improve thi...
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When should I use the HashSet type?

... can do with a single set is to establish what its members are, and to check whether an item is a member. Asking if you can retrieve a single element (e.g. set[45]) is misunderstanding the concept of the set. There's no such thing as the 45th element of a set. Items in a set have no ordering. Th...
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Subtract two variables in Bash

...s of files between two directories but the COUNT= expression does not work. What is the correct syntax? 8 Answers ...
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How to set cursor position in EditText?

... NotACleverManNotACleverMan 10.9k1111 gold badges4040 silver badges6363 bronze badges ...
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“var” or no “var” in JavaScript's “for-in” loop?

... Use var, it reduces the scope of the variable otherwise the variable looks up to the nearest closure searching for a var statement. If it cannot find a var then it is global (if you are in a strict mode, using strict, global variables throw an error). This can lead to problems like the following....
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What is C# analog of C++ std::pair?

...ello", 4); In previous versions you can use System.Collections.Generic.KeyValuePair<K, V> or a solution like the following: public class Pair<T, U> { public Pair() { } public Pair(T first, U second) { this.First = first; this.Second = second; } ...
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Efficient evaluation of a function at every cell of a NumPy array

...e x * 5 + 8 f = np.vectorize(f) # or use a different name if you want to keep the original f result_array = f(A) # if A is your Numpy array It's probably better to specify an explicit output type directly when vectorizing: f = np.vectorize(f, otypes=[np.float]) ...
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What's a good (free) visual merge tool for Git? (on windows) [closed]

A similar question was already asked, but for Ubuntu. 7 Answers 7 ...
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Extending the User model with custom fields in Django

...h Django's authentication app) with custom fields? I would also possibly like to use the email as the username (for authentication purposes). ...
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How to call a function from a string stored in a variable?

... answered Jun 17 '09 at 8:50 knittlknittl 184k4242 gold badges255255 silver badges306306 bronze badges ...