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Catching multiple exception types in one catch block

...fining the exceptions). Even given that there are exceptions you want to "fall through", you should still be able to define a hierarchy to match your needs. abstract class MyExceptions extends Exception {} abstract class LetterError extends MyExceptions {} class AError extends LetterError {} cla...
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AWS S3 copy files and folders between two buckets

...rows the following error A client error (PermanentRedirect) occurred when calling the ListObjects operation: The bucket you are attempting to access must be addressed using the specified endpoint. Please send all future requests to this endpoint. – Giovanni Bitliner ...
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JavaScript for detecting browser language preference [duplicate]

... I think the main problem here is that the browser settings don't actually affect the navigator.language property that is obtained via javascript. What they do affect is the HTTP 'Accept-Language' header, but it appears this value is not available through javascript at all. (Probably why @and...
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How can I manually generate a .pyc file from a .py file

...n not depend on Python's "import" statement to generate .pyc file automatically 8 Answers ...
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Can Powershell Run Commands in Parallel?

...o do some batch processing on a bunch of images and I'd like to do some parallel processing. Powershell seems to have some background processing options such as start-job, wait-job, etc, but the only good resource I found for doing parallel work was writing the text of a script out and running thos...
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PHP: exceptions vs errors?

... Exceptions are thrown - they are intended to be caught. Errors are generally unrecoverable. Lets say for instance - you have a block of code that will insert a row into a database. It is possible that this call fails (duplicate ID) - you will want to have a "Error" which in this case is an "Exc...
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Dynamically replace the contents of a C# method?

What I want to do is change how a C# method executes when it is called, so that I can write something like this: 9 Answers ...
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Create a “with” block on several context managers? [duplicate]

...rite: with A() as X, B() as Y, C() as Z: do_something() This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the below methods. In Python 3.3, you can enter an unknown-length list of context managers by using contextlib.Exit...
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Most efficient way to remove special characters from string

I want to remove all special characters from a string. Allowed characters are A-Z (uppercase or lowercase), numbers (0-9), underscore (_), or the dot sign (.). ...
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Deadly CORS when http://localhost is the origin

...lija's comment is correct, adding these headers to localhost will not magically give you access to all other sites. It's the remote site that needs to be served with these headers. – Rob W Mar 22 '14 at 22:59 ...