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What is the python “with” statement designed for?

...ption handling by encapsulating common preparation and cleanup tasks in so-called context managers. More details can be found in PEP 343. For instance, the open statement is a context manager in itself, which lets you open a file, keep it open as long as the execution is in the context of the with s...
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NUnit vs. MbUnit vs. MSTest vs. xUnit.net [closed]

...nclature makes no sense - facts and theory? Be realistic! Those are better called tests and data. – DeepSpace101 Nov 20 '12 at 7:53 ...
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What is The Rule of Three?

...And here? } (If you are puzzled by the name(name), age(age) part, this is called a member initializer list.) Special member functions What does it mean to copy a person object? The main function shows two distinct copying scenarios. The initialization person b(a); is performed by the copy construct...
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Does MySQL ignore null values on unique constraints?

...ted Oct 8 '18 at 13:50 Jon Schneider 19.9k1616 gold badges120120 silver badges149149 bronze badges answered Sep 14 '10 at 19:34 ...
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What's the valid way to include an image with no src?

I have an image that I will dynamically populate with a src later with javascript but for ease I want the image tag to exist at pageload but just not display anything. I know <img src='' /> is invalid so what's the best way to do this? ...
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Simplest SOAP example

... '<soapenv:Body>' + '<api:some_api_call soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">' + '<username xsi:type="xsd:string">login_username</username>' + '<password xsi...
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Git branch diverged after rebase

...f you are collaborating with others on this branch, force pushing is a bad idea, as it will cause other collaborators to become very confused when their history suddenly doesn't match. TL;DR - If you're not collaborating, push the branch using push -f. If you are, reset the branch to the previous ...
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Comma in C/C++ macro

... @WilliamCustode as I recall, I'd been studying the grammar of function types and function declarations with reference to the most vexing parse problem, so it was fortuitous that I was aware that redundant parentheses could be applied to a type in t...
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How do I implement interfaces in python?

...= server def client_show(self): self._server.show() # This call will fail with an exception try: x = MyClient(MyBadServer) except Exception as exc: print 'Failed as it should!' # This will pass with glory MyClient(MyServer()).client_show() ...
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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?

...buffer until the buffer is flushed. Output to a file or terminal is historically slow (terminals or consoles are still slow), writing character by character is ineffective, writing a chunk of bytes is much more effective. – Some programmer dude Apr 4 '18 at 17:...