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No connection could be made because the target machine actively refused it?

... If this happens always, it literally means that the machine exists but that it has no services listening on the specified port, or there is a firewall stopping you. If it happens occasionally - you used the word "sometimes" - and retrying succeeds,...
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Is there a built in function for string natural sort?

... (full disclosure, I am the package's author). For your case, you can do either of the following: >>> from natsort import natsorted, ns >>> x = ['Elm11', 'Elm12', 'Elm2', 'elm0', 'elm1', 'elm10', 'elm13', 'elm9'] >>> natsorted(x, key=lambda y: y.lower()) ['elm0', 'elm1',...
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Comma in C/C++ macro

... and >=, macro expansion can't ignore commas inside angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclose the macro argument in parentheses: FOO((std::map<int, int>), map...
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Trouble comparing time with RSpec

...-rails gem 2.14. For a my object I would like to compare the current time with the updated_at object attribute after a controller action run, but I am in trouble since the spec does not pass. That is, given the following is the spec code: ...
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Sticky sidebar: stick to bottom when scrolling down, top when scrolling up

...n to my sticky sidebar problem. I have a specific idea of how I would like it to act; effectively, I would like it to stick to the bottom as you scroll down, and then as soon as you scroll back up I would like it to stick to the top, in a fluid motion (no jumping). I am unable to find an example of ...
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Passing a dictionary to a function as keyword parameters

... Figured it out for myself in the end. It is simple, I was just missing the ** operator to unpack the dictionary So my example becomes: d = dict(p1=1, p2=2) def f2(p1,p2): print p1, p2 f2(**d) ...
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How do I reverse an int array in Java?

... To reverse an int array, you swap items up until you reach the midpoint, like this: for(int i = 0; i < validData.length / 2; i++) { int temp = validData[i]; validData[i] = validData[validData.length - i - 1]; validData[validData.length - i - 1...
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How to kill an Android activity when leaving it so that it cannot be accessed from the back button?

In an given Android activity, I would like to start a new activity for the user at some point. Once they leave the first activity and arrive at the second, the first activity is stale and I want to remove it completely so it can not be accessed again from the back button. ...
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Python != operation vs “is not”

... == is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.) is is an identity test. It checks whether the right hand side and the left hand side ar...
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Git Remote: Error: fatal: protocol error: bad line length character: Unab

I set up a git server and want now to push initially my repo from the client. I used git push origin master and get this error message: ...