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When to use %r instead of %s in Python? [duplicate]

... Thanks. I was wondering why one might use the %r - but I now understand from your example above. – Helen Neely Jan 16 '14 at 15:49 2 ...
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ASP.NET MVC Conditional validation

...eve this by handling "ModelState", by simply removing unwanted validations from it. ...In some class... public bool PropertyThatRequiredAnotherFieldToBeFilled { get; set; } [Required(ErrorMessage = "*")] public string DepentedProperty { get; set; } ...class continues... ...In some c...
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C# operator overload for `+=`?

... Overloadable Operators, from MSDN: Assignment operators cannot be overloaded, but +=, for example, is evaluated using +, which can be overloaded. Even more, none of assignment operators can be overloaded. I think this is because there will be ...
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Can't find Request.GetOwinContext

...ut this answer finally helped me get it working (plus manually deleting it from the db, which I have access to). Thank you!! – SlimsGhost May 28 '15 at 2:08 ...
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Shrink a YouTube video to responsive width

...e element. The padding on the .videowrapper is necessary to keep the video from collapsing. You may have to tweak the numbers depending upon your layout. share | improve this answer | ...
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Update a dataframe in pandas while iterating row by row

...in my pseudo code I do the modification on the dataframe, not on the value from the iterator. The iterator value is only used for the index of the value/object. What will fail is row['ifor']=some_thing, for the reasons mentioned in the documentation. – rakke Ma...
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UIView with rounded corners and drop shadow?

...and other properties before calling addShadow. After that, just call this from viewDidLoad like this: button.addShadow(offset: CGSize.init(width: 0, height: 3), color: UIColor.black, radius: 2.0, opacity: 0.35) Final result: Super easy and simple! ...
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ADB Android Device Unauthorized

...rompt for authorization it might be because the account you're running adb from doesn't have permission to handle keys. If this happens to you, try it elevated permissions (e.g. sudo). – MatrixManAtYrService Aug 27 '17 at 20:54 ...
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“Invalid signature file” when attempting to run a .jar

...e a fat jar, the following syntax might help. jar { doFirst { from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } } } exclude 'META-INF/*.RSA', 'META-INF/*.SF','META-INF/*.DSA' } ...
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Message Queue vs. Web Services? [closed]

...st probably your server will go down. You can expect an immediate response from the server, but you can handle asynchronous calls too. When you use a message queue like RabbitMQ, Beanstalkd, ActiveMQ, IBM MQ Series, Tuxedo you expect different and more fault tolerant results: If the server fails...