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Changing variable names in Vim

...d a new term). Note: I actually needed to press colon (:) twice. The first time I pressed it, I saw :'<,'>. If I just typed s/ from there it didn't work; I had to type another colon before the s/. – Kelvin Mar 20 '12 at 21:14 ...
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How do I wait for an asynchronously dispatched block to finish?

...if (![NSThread isMainThread]) { dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER); } else { while (dispatch_semaphore_wait(sema, DISPATCH_TIME_NOW)) { [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0]]; } } This sho...
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How do I determine the size of an object in Python?

...he whole data structure? The set is 736 itself because it has sized up one time to 736 bytes. Then you add the size of the items, so that's 1736 bytes in total Some caveats for function and class definitions: Note each class definition has a proxy __dict__ (48 bytes) structure for class attrs. Each ...
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How to timeout a thread

I want to run a thread for some fixed amount of time. If it is not completed within that time, I want to either kill it, throw some exception, or handle it in some way. How can it be done? ...
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How do I sort a list of dictionaries by a value of the dictionary?

... sorted using timsort which is stable, you can call sorted several times to have a sort on several criteria – njzk2 May 29 '13 at 13:41 ...
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What is the optimal algorithm for the game 2048?

...ing watching. To assess the score performance of the AI, I ran the AI 100 times (connected to the browser game via remote control). For each tile, here are the proportions of games in which that tile was achieved at least once: 2048: 100% 4096: 100% 8192: 100% 16384: 94% 32768: 36% The minimum s...
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Determine the number of lines within a text file

...much memory as the size of the file. The second merely loops one line at a time so it never has to allocate more than one line's worth of memory at a time. This isn't that important for small files, but for larger files it could be an issue (if you try and find the number of lines in a 4GB file on a...
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Argparse: Way to include default values in '--help'?

...d information about the default value to. The exact output for your scan-time option then becomes: --scan-time [SCAN_TIME] Wait SCAN-TIME seconds between status checks. (default: 5) ...
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How do I concatenate const/literal strings in C?

...ized notation always works and the unparenthesized notation only works sometimes, so always use the parenthesized notation; it is a simple rule to remember and is safe. This gets into a religious argument — I've been involved in discussions with those who object before — but the simplicity of '...
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How to reload a clojure file in REPL

...ure.tools.namespace.repl. Subsequent calls to (refresh) will give you a RuntimeException, "Unable to resolve symbol: refresh in this context." Probably the best thing to do is to either (require 'your.namespace :reload-all), or, if you know you're going to want to refresh your REPL a lot for a given...