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How to print an exception in Python?

...the sys.exc_info() function and the traceback.print_exc() function gets it from there. You’d only ever need to pass in an exception explicitly when not handling an exception or when you want to show info based on a different exception. – Martijn Pieters♦ Oc...
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Exception thrown in NSOrderedSet generated accessors

...sions at WWDC. They acknowledge the issue and that it's a genuine bug, and from what I've seen it has the "critical" status, but of course there's no promise as to when they'll fix it. I don't think it'll be fixed in iOS6/Mountain Lion. I think it'd be good to duplicate this radar further. Currently...
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POST data to a URL in PHP

... If you're looking to post data to a URL from PHP code itself (without using an html form) it can be done with curl. It will look like this: $url = 'http://www.someurl.com'; $myvars = 'myvar1=' . $myvar1 . '&myvar2=' . $myvar2; $ch = curl_init( $url ); curl_s...
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Is jquery a javascript library or framework? [closed]

... +1. A library is something you call from your program. A framework is something that calls into your program. – Thilo Aug 15 '11 at 8:10 2 ...
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Padding is invalid and cannot be removed?

...zation vector are used for encoding and decoding, this issue does not come from data decoding but from data encoding. After you called Write method on a CryptoStream object, you must ALWAYS call FlushFinalBlock method before Close method. MSDN documentation on CryptoStream.FlushFinalBlock meth...
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Using helpers in model: how do I include helper dependencies?

I'm writing a model that handles user input from a text area. Following the advice from http://blog.caboo.se/articles/2008/8/25/sanitize-your-users-html-input , I'm cleaning up the input in the model before saving to database, using the before_validate callback. ...
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Handling a colon in an element ID in a CSS selector [duplicate]

...tion are incorrect. You need to escape both the underscore (to prevent IE6 from ignoring the rule altogether in some edge cases) and the colon character for the selector to work properly across different browsers. Technically, the colon character can be escaped as \:, but that doesn’t work in IE ...
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Why does npm install say I have unmet dependencies?

I have a node package. When I run npm install from the package root, it installs a bunch of things, but then prints several error messages that look like this: ...
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How to get the first element of an array?

How do you get the first element from an array like this: 31 Answers 31 ...
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How to get Git to clone into current directory

...ply put a dot next to it git clone git@github.com:user/my-project.git . From git help clone: Cloning into an existing directory is only allowed if the directory is empty. So make sure the directory is empty (check with ls -a), otherwise the command will fail. ...