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What exactly are iterator, iterable, and iteration?

... Iteration is a general term for taking each item of something, one after another. Any time you use a loop, explicit or implicit, to go over a group of items, that is iteration. In Python, iterable and iterator have specific meanings. An iterable is an object that has an __iter...
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What is the recommended way to use Vim folding for Python code

...nally I can't convince myself to litter my code with the markers. I've become pretty used to (and efficient) at using indent-folding. Together with my mapping of space bar (see below) to open/close folds and the zR and zM commands, I'm right at home. Perfect for Python! set foldmethod=indent nnorema...
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How does UTF-8 “variable-width encoding” work?

...them all. That's what the UTF-32 encoding does. Yet the UTF-8 encoding somehow squeezes these into much smaller spaces by using something called "variable-width encoding". ...
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How do I remove all non alphanumeric characters from a string except dash?

How do I remove all non alphanumeric characters from a string except dash and space characters? 13 Answers ...
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How do I loop through a list by twos? [duplicate]

I want to loop through a Python list and process 2 list items at a time. Something like this in another language: 7 Answers...
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How do I make background-size work in IE?

...:DXImageTransform.Microsoft.AlphaImageLoader( src='images/logo.gif', sizingMethod='scale'); -ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader( src='images/logo.gif', sizingMethod='scale')"; However, this scales the entire image to fit in the allocated area, so if you're using a spri...
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With Spring can I make an optional path variable?

... You can't have optional path variables, but you can have two controller methods which call the same service code: @RequestMapping(value = "/json/{type}", method = RequestMethod.GET) public @ResponseBody TestBean typedTestBean( HttpServletRequest req, @PathVariable String type, ...
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Using wget to recursively fetch a directory with arbitrary files in it

I have a web directory where I store some config files. I'd like to use wget to pull those files down and maintain their current structure. For instance, the remote directory looks like: ...
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PHP Replace last occurrence of a String in a String?

...eturn TRUE no matter what. It returns a string no matter what. If a replacement can't be made it returns the original $subject, just like substr_replace and str_replace do. – Mischa Jul 12 '13 at 0:58 ...
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Laravel: Get base url

Simple question, but the answer seems quite hard to come by. In Codeigniter, I could load the url helper and then simply do ...