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Should I use 'has_key()' or 'in' on Python dicts?

... in is definitely more pythonic. In fact has_key() was removed in Python 3.x. share | improve this answer | ...
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Test if lists share any items in python

I want to check if any of the items in one list are present in another list. I can do it simply with the code below, but I suspect there might be a library function to do this. If not, is there a more pythonic method of achieving the same result. ...
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Where should signal handlers live in a django project?

I have just started implementing signal listeners in a django project. While I understand what they are and how to use them. I am having a hard time figuring out where I should put them. The documentation from the django site has this to say: ...
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Can C++ code be valid in both C++03 and C++11 but do different things?

... to both the C++03 standard and the C++11 standard, but do different things depending on under which standard it is being compiled? ...
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Elements order in a “for (… in …)” loop

Does the "for…in" loop in Javascript loop through the hashtables/elements in the order they are declared? Is there a browser which doesn't do it in order? The object I wish to use will be declared once and will never be modified. ...
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Where is C not a subset of C++? [closed]

I read in a lot of books that C is a subset of C++. 12 Answers 12 ...
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What is referential transparency?

...ed as "it means you can replace equals with equals" but this seems like an inadequate explanation. 13 Answers ...
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What is the difference between a 'closure' and a 'lambda'?

Could someone explain? I understand the basic concepts behind them but I often see them used interchangeably and I get confused. ...
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Which would be better for concurrent tasks on node.js? Fibers? Web-workers? or Threads?

... lot. But soon I found out that it lacked badly the ability to perform CPU-intensive tasks. So, I started googling and got these answers to solve the problem: Fibers, Webworkers and Threads (thread-a-gogo). Now which one to use is a confusion and one of them definitely needs to be used - afterall wh...
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What should go into an .h file?

When dividing your code up into multiple files just what exactly should go into an .h file and what should go into a .cpp file? ...