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Multidimensional Array [][] vs [,] [duplicate]

What's their difference? (1) yields an error, what's the reason? 5 Answers 5 ...
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How do I check the difference, in seconds, between two dates?

...es, use total_seconds like this: import datetime as dt a = dt.datetime(2013,12,30,23,59,59) b = dt.datetime(2013,12,31,23,59,59) (b-a).total_seconds() 86400.0 #note that seconds doesn't give you what you want: (b-a).seconds 0 ...
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What is the syntax to insert one list into another list in python?

... Do you mean append? >>> x = [1,2,3] >>> y = [4,5,6] >>> x.append(y) >>> x [1, 2, 3, [4, 5, 6]] Or merge? >>> x = [1,2,3] >>> y = [4,5,6] >>> x + y [1, 2, 3, 4, 5, 6] >>> x.extend(y) >&g...
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Differences between Oracle JDK and OpenJDK

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What is the Objective-C equivalent for “toString()”, for use with NSLog?

... | edited Aug 27 '12 at 19:01 answered Jul 9 '09 at 15:49 ...
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CSS last-child selector: select last-element of specific class, not last child inside of parent?

I want to select #com19 ? 6 Answers 6 ...
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What does upstream mean in nginx?

... 165 It's used for proxying requests to other servers. An example from http://wiki.nginx.org/LoadB...
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Git flow release branches and tags - with or without “v” prefix

... 101 Well, basically it is a matter of preference, but I prefer the version with the v, as Semver d...
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Use ffmpeg to add text subtitles [closed]

... | edited Jun 23 at 19:08 answered Jul 11 '13 at 2:53 ...
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Set attribute without value

... | edited May 9 '16 at 4:58 Pang 8,1981717 gold badges7373 silver badges111111 bronze badges an...