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Sorting arrays in NumPy by column

...initially define your array with fields... As a quick example, to sort it and return a copy: In [1]: import numpy as np In [2]: a = np.array([[1,2,3],[4,5,6],[0,0,1]]) In [3]: np.sort(a.view('i8,i8,i8'), order=['f1'], axis=0).view(np.int) Out[3]: array([[0, 0, 1], [1, 2, 3], [4, 5...
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Strip HTML from strings in Python

...e, I'm trying to find a way to only show the contents of each HTML element and not the formatting itself. If it finds '<a href="whatever.com">some text</a>' , it will only print 'some text', '<b>hello</b>' prints 'hello', etc. How would one go about doing this? ...
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return, return None, and no return at all?

... On the actual behavior, there is no difference. They all return None and that's it. However, there is a time and place for all of these. The following instructions are basically how the different methods should be used (or at least how I was taught they should be used), but they are not absol...
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Resolving ambiguous overload on function pointer and std::function for a lambda using +

In the following code, the first call to foo is ambiguous, and therefore fails to compile. 1 Answer ...
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String, StringBuffer, and StringBuilder

Please tell me a real time situation to compare String , StringBuffer , and StringBuilder ? 11 Answers ...
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Single script to run in both Windows batch and Linux Bash?

...rite a single script file which executes in both Windows (treated as .bat) and Linux (via Bash)? 11 Answers ...
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Replace part of a string with another string

... There's a function to find a substring within a string (find), and a function to replace a particular range in a string with another string (replace), so you can combine those to get the effect you want: bool replace(std::string& str, const std::string& from, const std::string&a...
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Why can't I use a list as a dict key in python?

...nt's values, for instance when checking (in-)equality. Many would - understandably - expect that you can use any list [1, 2] to get the same key, where you'd have to keep around exactly the same list object. But lookup by value breaks as soon as a list used as key is modified, and for lookup by iden...
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How to add Options Menu to Fragment in Android

...Bundle) to notify the fragment that it should participate in options menu handling. share | improve this answer | follow | ...
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Difference between $state.transitionTo() and $state.go() in Angular ui-router

In AngularJS, I see sometimes we use $state.transitionTo() and sometimes we use $state.go() . Can anyone tell me how they differ and when one should be used over the other? ...