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What are metaclasses in Python?

...y) Metaclasses are the 'stuff' that creates classes. You define classes in order to create objects, right? But we learned that Python classes are objects. Well, metaclasses are what create these objects. They are the classes' classes, you can picture them this way: MyClass = MetaClass() my_object = ...
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“elseif” syntax in JavaScript

... @JayK: Haha.. PHP has elseif, perl has elsif (I think), and Python has elif.. that kind of annoyed me at first, but... I guess it's kind of cute. It does serve a slight purpose in Python and PHP though, because it wouldn't work with their ...
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How to access the content of an iframe with jQuery?

...). A workaround is saving the external contents in a file, for example (in PHP): <?php $contents = file_get_contents($external_url); $res = file_put_contents($filename, $contents); ?> then, get the new file content (string) and parse it to html, for example (in jquery): $.get(file_...
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Best way to determine user's locale within browser

...to auto-define a default value depending on the user's browser settings in order to minimize the steps to access the content. ...
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How do I find a default constraint using INFORMATION_SCHEMA?

...ven column. (For non-SQL Server users, you need the name of the default in order to drop it, and if you don't name the default constraint yourself, SQL Server creates some crazy name like "DF_TableN_Colum_95AFE4B5". To make it easier to change your schema in the future, always explicitly name your c...
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How to identify all stored procedures referring a particular table

... and sp.type in ('P', 'FN') where o.name = 'YourTableName' order by sp.Name share | improve this answer | follow | ...
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Why would one use nested classes in C++?

...lection and Element - bad, because the name "Element" is general enough in order to cause a possible name clash introduce a namespace someSpecificCollection and declare classes someSpecificCollection::Collection and someSpecificCollection::Element. No risk of name clash, but can it get any more verb...
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“R cannot be resolved to a variable”? [duplicate]

...eople that have problems with the "R" file would be to try the next steps (order doesn't matter) : update ADT & SDK , Eclipse and Java. remove gen folder , and create it again . do a clean-project. right click the project and choose android-tools -> fix-project-properties . right click the ...
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Get raw POST body in Python Flask regardless of Content-Type header

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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Image Greyscale with CSS & re-color on mouse-over?

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