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In Python, using argparse, allow only positive integers

... type would be the recommended option to handle conditions/checks, as in Yuushi's answer. In your specific case, you can also use the choices parameter if your upper limit is also known: parser.add_argument('foo', type=int, choices=xrange(5, 10)) Note: Use range ...
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How to set Default Controller in asp.net MVC 4 & MVC 5

...tion = "Index", id = UrlParameter.Optional } ); as the default landing page. You can change that to be any route you wish. routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters* new { controller = "Sales", action = "Project...
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How do you loop through each line in a text file using a windows batch file?

...ow how to loop through each line in a text file using a Windows batch file and process each line of text in succession. 12 ...
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Map.clear() vs new Map : Which one will be better? [duplicate]

...h is backed with new array. So, garbage collector should clear all the key and values from the previous map, and clear the reference to itself. So O(n) algorithm is executed anyway, but in the garbage collector thread. For 1000 records you won't see any difference. BUT. The performance guide tells ...
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Will Dart support the use of existing JavaScript libraries?

I understand Dart compiles to JavaScript, and I read the Dart Language Spec on Libraries, although I didn't see an answer there. Also a search on their discussion form for the word 'existing' turns up 3 results that are not related. ...
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How to add display:inline-block in a jQuery show() function?

... Instead of show, try to use CSS to hide and show the content. function switch_tabs(obj) { $('.tab-content').css('display', 'none'); // you could still use `.hide()` here $('.tabs a').removeClass("selected"); var id = obj.attr("rel"); $('#' + id).c...
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How to Rotate a UIImage 90 degrees?

...portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do this. I set a targe...
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Animate text change in UILabel

... I wonder if it works, and it works perfectly! Objective-C [UIView transitionWithView:self.label duration:0.25f options:UIViewAnimationOptionTransitionCrossDissolve animations:^{ self.l...
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OpenSSL: PEM routines:PEM_read_bio:no start line:pem_lib.c:703:Expecting: TRUSTED CERTIFICATE [close

...ing in Stunnel's CApath directory. I have got some certs in this directory and they are working well. Also, I have a server sert and server key: ...
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Calculating distance between two points, using latitude longitude?

...ween two points. /** * Calculate distance between two points in latitude and longitude taking * into account height difference. If you are not interested in height * difference pass 0.0. Uses Haversine method as its base. * * lat1, lon1 Start point lat2, lon2 End point el1 Start altitude in m...