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Difference between abstract class and interface in Python

... @L.DeLeo - are you sure your notion of has-a vs. is-a is correct? I generally view the distinction as has-a = member variable vs. is-a = inheritance (parent class or interface). Think Comparable or List in Java; those are is-a relationships, regardless of whether they're interfaces or abstract cl...
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Getting attributes of a class

...gt;> inspect.getmembers(MyClass, lambda a:not(inspect.isroutine(a))) [('__class__', type), ('__dict__', <dictproxy {'__dict__': <attribute '__dict__' of 'MyClass' objects>, '__doc__': None, '__module__': '__main__', '__weakref__': <attribute '__weakref__' of 'MyClass' obje...
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Import a module from a relative path

... Assuming that both your directories are real Python packages (do have the __init__.py file inside them), here is a safe solution for inclusion of modules relatively to the location of the script. I assume that you want to do this, because you need to include a set of modules with your script. I us...
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WatiN or Selenium? [closed]

.... It will be a major upgrade to the current CTP 2.0 versions and will basically give you the same functionality to automate FireFox and IE as version 1.3.0 offers for automating IE. So no concerns there. Hope this helps in making your choice Jeroen van Menen Lead dev WatiN ...
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What version of Visual Studio is Python on my computer compiled with?

...to be Visual C++ 2008 according to this thread on the OpenCobol forums (of all places). The MSDN page on Predefined Macros indicates 1500 to be the result of the _MSC_VER macro. This other forum post mentions that (For reference, Visual Studio 2003 has _MSC_VER = 1310; Visual Studio 2005 ha...
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Why {} + {} is NaN only on the client side? Why not in Node.js?

...le._commandLineAPI = new CommandLineAPI(this._commandLineAPIImpl, isEvalOnCallFrame ? object : null); expression = "with ((window && window.console && window.console._commandLineAPI) || {}) {\n" + expression + "\n}"; } var result = evalFunction.call(object, expression...
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oracle10g 网址收藏 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...indows (32-bit) http://download.oracle.com/otn/nt/oracle10g/10201/10201_database_win32.zip http://download.oracle.com/otn/nt/oracle10g/10201/10201_client_win32.zip http://download.oracle.com/otn/nt/oracle10g/10201/10201_clusterware_win32.zip http://download.oracle.com/otn/nt/oracle10g/1020...
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How do I export UIImage array as a movie?

...riter has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll have to: 1) Wire the writer: NSError *error = nil; AVAssetWriter *videoWriter = [[AVAssetWriter alloc] initWithURL: [...
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Is Java “pass-by-reference” or “pass-by-value”?

... Java is always pass-by-value. Unfortunately, we never handle an object at all, instead juggling object-handles called references (which are passed by value of course). The chosen terminology and semantics easily confuse many beginners. It goes like this: public static void main(String[] args) { ...
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What's the recommended approach to resetting migration history using Django South?

...inted out by @thnee below. Since your answer has so many upvotes I'd really appreciate it if you could edit it and add at least a warning about this, or (even better) change it to reflect @hobs approach (which is just as convenient, but doesn't affect other apps) - thanks! – chris...