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Elegant ways to support equivalence (“equality”) in Python classes

... == n2 # False -- oops So, Python by default uses the object identifiers for comparison operations: id(n1) # 140400634555856 id(n2) # 140400634555920 Overriding the __eq__ function seems to solve the problem: def __eq__(self, other): """Overrides the default implementation""" if isinst...
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Is there a range class in C++11 for use with range based for loops?

... Yes, that's definitely the nature of what I'd be looking for. I'm glad Boost did it. I'm sad the standard committee did not include it for whatever reason. It would've been a great complement to the range-base-for feature. – Omnifarious Aug 25...
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Default filter in Django admin

... ('all', _('All')), ) def choices(self, cl): for lookup, title in self.lookup_choices: yield { 'selected': self.value() == lookup, 'query_string': cl.get_query_string({ self.parameter_name: lookup, ...
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What is time_t ultimately a typedef to?

...ion. The time_t datatype is a data type in the ISO C library defined for storing system time values. Such values are returned from the standard time() library function. This type is a typedef defined in the standard header. ISO C defines time_t as an arithmetic type, but does no...
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Importing from a relative path in Python

I have a folder for my client code, a folder for my server code, and a folder for code that is shared between them 5 Answer...
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How to determine the version of the C++ standard used by the compiler?

...here is no overall way to do this. If you look at the headers of cross platform/multiple compiler supporting libraries you'll always find a lot of defines that use compiler specific constructs to determine such things: /*Define Microsoft Visual C++ .NET (32-bit) compiler */ #if (defined(_M_IX86) &a...
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Use numpy array in shared memory for multiprocessing

I would like to use a numpy array in shared memory for use with the multiprocessing module. The difficulty is using it like a numpy array, and not just as a ctypes array. ...
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Select between two dates with Django

... Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
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how to break the _.each function in underscore.js

I'm looking for a way to stop iterations of underscore.js _.each() method, but can't find the solution. jQuery .each() can break if you do return false . ...
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How can one use multi threading in PHP applications

...uly, or just simulating it. Some time back it was suggested that you could force the operating system to load another instance of the PHP executable and handle other simultaneous processes. ...