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Converting between datetime, Timestamp and datetime64

...tetime.utcnow() >>> dt datetime.datetime(2012, 12, 4, 19, 51, 25, 362455) >>> dt64 = np.datetime64(dt) >>> ts = (dt64 - np.datetime64('1970-01-01T00:00:00Z')) / np.timedelta64(1, 's') >>> ts 1354650685.3624549 >>> datetime.utcfromtimestamp(ts) datetime.da...
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CSS Selector that applies to elements with two classes

...attribute being set to two specific classes. For example, let's say I have 3 divs: 1 Answer ...
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How to convert 2D float numpy array to 2D int numpy array?

... Use the astype method. >>> x = np.array([[1.0, 2.3], [1.3, 2.9]]) >>> x array([[ 1. , 2.3], [ 1.3, 2.9]]) >>> x.astype(int) array([[1, 2], [1, 2]]) share ...
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How do I create an empty array/matrix in NumPy?

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MySQL: Order by field size/length

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How to reset a remote Git repository to remove all commits?

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Docker: adding a file from a parent directory

... 231 You can build the Dockerfile from the parent directory: docker build -t <some tag> -f &l...
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How to make clang compile to llvm IR

... | edited Nov 24 '13 at 18:05 answered Feb 5 '12 at 12:56 ...
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jQuery - Add ID instead of Class

... | edited Dec 9 '15 at 3:39 gsamaras 64.5k3131 gold badges140140 silver badges240240 bronze badges an...
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Save image from URL by paperclip

... Nicolas BlancoNicolas Blanco 10.2k55 gold badges3434 silver badges4949 bronze badges 7 ...