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Very large matrices using Python and NumPy

NumPy is an extremely useful library, and from using it I've found that it's capable of handling matrices which are quite large (10000 x 10000) easily, but begins to struggle with anything much larger (trying to create a matrix of 50000 x 50000 fails). Obviously, this is because of the massive memo...
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What are the differences between the urllib, urllib2, urllib3 and requests module?

...ython, what are the differences between the urllib , urllib2 , urllib3 and requests modules? Why are there three? They seem to do the same thing... ...
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Combining node.js and Python

... For communication between node.js and Python server, I would use Unix sockets if both processes run on the same server and TCP/IP sockets otherwise. For marshaling protocol I would take JSON or protocol buffer. If threaded Python shows up to be a bottleneck, ...
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Career day in kindergarten: how to demonstrate programming in 20 minutes? [closed]

I was invited to the kindergarten group of my elder daughter to talk and answer the kids' questions about my profession. There are 26 kids of age 4-6 in the group, plus 3 teachers who are fairly scared of anything related to programming and IT themselves, but bold enough to learn new tricks. I would...
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What's the deal with a leading underscore in PHP class methods?

...of Object Oriented PHP (PHP 4). That implementation of OO was pretty bad, and didn't include things like private methods. To compensate, PHP developers prefaced methods that were intended to be private with an underscore. In some older classes you'll see /**private*/ __foo() { to give it some ext...
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Canvas is stretched when using CSS but normal with “width” / “height” properties

I have 2 canvases, one uses HTML attributes width and height to size it, the other uses CSS: 8 Answers ...
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How do I build a graphical user interface in C++? [closed]

All of my C++ programs so far have been using the command line interface and the only other language I have experience with is PHP which doesn't support GUIs. ...
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Auto-fit TextView for Android

... Thanks to MartinH's simple fix here, this code also takes care of android:drawableLeft, android:drawableRight, android:drawableTop and android:drawableBottom tags. My answer here should make you happy Auto Scale TextView Text to Fit within Bounds I have modified your test case: @Overri...
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What is the difference between --save and --save-dev?

... Shorthand versions: -D is short for --save-dev and -S is short for --save – chrisco Mar 26 '17 at 14:07 ...
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Why shouldn't all functions be async by default?

... First off, thank you for your kind words. It is indeed an awesome feature and I am glad to have been a small part of it. If all my code is slowly turning async, why not just make it all async by default? Well, you're exaggerating; all your code isn't turning async. When you add two "plain" in...