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Wrapping a C library in Python: C, Cython or ctypes?

I want to call a C library from a Python application. I don't want to wrap the whole API, only the functions and datatypes that are relevant to my case. As I see it, I have three choices: ...
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Left Align Cells in UICollectionView

...ep their size, add the following at the top of the closure in the forEach call: guard layoutAttribute.representedElementCategory == .cell else { return } Objective-C: - (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect { NSArray *attributes = [super layoutAttributesForElementsI...
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MongoDB SELECT COUNT GROUP BY

... I need some extra operation based on the result of aggregate function. Finally I've found some solution for aggregate function and the operation based on the result in MongoDB. I've a collection Request with field request, source, status, requestDate. Single Field Group By & Count: db.Request...
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How do I get only directories using Get-ChildItem?

I'm using PowerShell 2.0 and I want to pipe out all the subdirectories of a certain path. The following command outputs all files and directories, but I can't figure out how to filter out the files. ...
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Python memory usage of numpy arrays

... The field nbytes will give you the size in bytes of all the elements of the array in a numpy.array: size_in_bytes = my_numpy_array.nbytes Notice that this does not measures "non-element attributes of the array object" so the actual size in bytes can be a few bytes larger th...
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How do I convert an enum to a list in C#? [duplicate]

...ction. It's 1000x slower (no exaggeration) than a string -> enum lookup table. – Nic Foster Feb 23 '18 at 23:21 add a comment  |  ...
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What is the proper way to re-throw an exception in C#? [duplicate]

... ends on that statement and not at the real source of the exception. Basically, it should be deemed a criminal offense to use "throw ex". share | improve this answer | follo...
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What is the reason for having '//' in Python? [duplicate]

... I actually like this style better... I can remember in atleast one language I've used (VB?) the differentiating factor was / vs \ ... but I could never remember which was which! – Matthew Scharley ...
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Sequence contains no matching element

...g about the others anyway. On the other hand, it looks like you might actually be better off with a join here in the first place. If you didn't care that it would do all matches (rather than just the first) you could use: var query = from target in _lstAcl.Documents join source in _dsA...
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How to assert two list contain the same elements in Python? [duplicate]

... Thanks. But downright misleading, I would have called it! – Wild Pottok Oct 22 '18 at 16:18 ...