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In-memory size of a Python structure

... Yep. The "4 higher" actually mostly look like "rounding up to a multiple of 8" which I believe is correct for the way malloc behaves here. No idea why decimal gets so distorted (with pympler on 2.6, too). – Alex Martelli ...
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How to install pip for Python 3 on Mac OS X?

OS X (Mavericks) has Python 2.7 stock installed. But I do all my own personal Python stuff with 3.3. I just flushed my 3.3.2 install and installed the new 3.3.3. So I need to install pyserial again. I can do it the way I've done it before, which is: ...
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Copy a file in a sane, safe and efficient way

...ude <fstream> int main() { std::ifstream src("from.ogv", std::ios::binary); std::ofstream dst("to.ogv", std::ios::binary); dst << src.rdbuf(); } This is so simple and intuitive to read it is worth the extra cost. If we were doing it a lot, better to fall back on OS ca...
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Installing R with Homebrew

I'm trying to install R using Homebrew. I ran these commands which are recommended elsewhere on SO: 12 Answers ...
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How to use the pass statement?

... I really don't think this properly answers the question. Citing one possible use for something, even if it is the most common use for it, is not the same as explaining what it is for. – Schilcote ...
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Delete/Reset all entries in Core Data?

Do you know of any way to delete all of the entries stored in Core Data? My schema should stay the same; I just want to reset it to blank. ...
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How do you echo a 4-digit Unicode character in Bash?

...d like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", . ...
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Thread context switch Vs. process context switch

...that a context switch messes with the processors cacheing mechanisms. Basically, when you context switch, all of the memory addresses that the processor "remembers" in its cache effectively become useless. The one big distinction here is that when you change virtual memory spaces, the processor's Tr...
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How does Trello access the user's clipboard?

...source code Trello uses to accomplish the clipboard trick. We don't actually "access the user's clipboard", instead we help the user out a bit by selecting something useful when they press Ctrl+C. Sounds like you've figured it out; we take advantage of the fact that when you want to hit Ctrl+C, ...
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How to keep a .NET console app running?

... a Console application that starts up some services in a separate thread. All it needs to do is wait for the user to press Ctrl+C to shut it down. ...