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How to redirect 'print' output to a file using python?

... The most obvious way to do this would be to print to a file object: with open('out.txt', 'w') as f: print >> f, 'Filename:', filename # Python 2.x print('Filename:', filename, file=f) # Python 3.x However, r...
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How efficient is locking an unlocked mutex? What is the cost of a mutex?

...ect happens often, then multiple locks would increase parallelism. At the cost of maintainability, since more locking means more debugging of the locking. How efficient is it to lock a mutex? I.e. how much assembler instructions are there likely and how much time do they take (in the case that t...
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Keyboard Interrupts with python's multiprocessing Pool

...ever returns, so the interrupt never happens. KeyboardInterrupt should almost certainly interrupt a condition wait. Note that this doesn't happen if a timeout is specified; cond.wait(1) will receive the interrupt immediately. So, a workaround is to specify a timeout. To do that, replace res...
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How to make a valid Windows filename from an arbitrary string?

..., (current, c) => current.Replace(c, '_')); I wonder if there are any possible performance improvements there. I have kept the original for readability purposes as performance is not my biggest concern. But if anyone is interested, might be worth benchmarking – chrispepper1...
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Go naming conventions for const

... whether you want to export the constant. A few examples: md5.BlockSize os.O_RDONLY is an exception because it was borrowed directly from POSIX. os.PathSeparator share | improve this answer ...
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How to list the files inside a JAR file?

... Don't forget to close fileSystem! – gmjonker Mar 10 '16 at 12:03 3 ...
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Allowed characters in Linux environment variable names

...ames shall not contain the character '='. For values to be portable across systems conforming to IEEE Std 1003.1-2001, the value shall be composed of characters from the portable character set (except NUL and as indicated below). So names may contain any character except = and NUL, but...
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Does Eclipse have line-wrap

... As mentioned in the post by VonC on this same page. Eclipse now has this capability as of 06/2016 Neon. Try this plugin Eclipse platform plugin It looks like eclipse only has the ability to do it manually on its own and here are the commands. A...
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How to check if a string contains an element from a list in Python

... should look to the answer of @Wladimir Palant, or you risk getting false positives. share | improve this answer | follow | ...
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Pure JavaScript Send POST Data Without a Form

Is there a way to send data using the POST method without a form and without refreshing the page using only pure JavaScript (not jQuery $.post() )? Maybe httprequest or something else (just can't find it now)? ...