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Hashing a file in Python

... def sha256sum(filename): h = hashlib.sha256() b = bytearray(128*1024) mv = memoryview(b) with open(filename, 'rb', buffering=0) as f: for n in iter(lambda : f.readinto(mv), 0): h.update(mv[:n]) return h.hexdigest() ...
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How can I create an object and add attributes to it?

...s", a very simple one already exists in Python -- all functions can have arbitrary attributes (including lambda functions). So, the following works: obj = someobject obj.a = lambda: None setattr(obj.a, 'somefield', 'somevalue') Whether the loss of clarity compared to the venerable Bunch recipe i...
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jQuery send string as POST parameters

... Not a direct answer to your question.. But following is the only syntax that used to work for me - data: '{"winNumber": "' + win + '"}', And the parameter-name match with the argument of the server method ...
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Is there a way to make R beep/play a sound at the end of a script?

... | edited Nov 12 '19 at 10:28 Mathias711 6,01344 gold badges3434 silver badges5050 bronze badges answe...
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What is the effect of extern “C” in C++?

... Just wanted to add a bit of info, since I haven't seen it posted yet. You'll very often see code in C headers like so: #ifdef __cplusplus extern "C" { #endif // all of your legacy C code here #ifdef __cplusplus } #endif What this accomplish...
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How to add leading zeros for for-loop in shell? [duplicate]

... | edited Jul 13 at 10:34 Vampire 29.5k22 gold badges5454 silver badges8585 bronze badges answered...
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How to install 2 Anacondas (Python 2 and 3) on Mac OS

... Then how can I switch between python2 and python3? And BTW, I'm on win7. – cqcn1991 Jun 12 '15 at 10:27 ...
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How can I check for NaN values?

... gimelgimel 69.3k1010 gold badges6868 silver badges104104 bronze badges ...
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Count how many records are in a CSV Python?

...anks. That will works, but do I have to read the lines first? That seems a bit of a hit? – GrantU Apr 19 '13 at 15:54 4 ...
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What are the use(s) for tags in Go?

... answered Jun 17 '15 at 10:49 iczaicza 256k4040 gold badges566566 silver badges550550 bronze badges ...