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Underscore vs Double underscore with variables and methods [duplicate]
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Explanation:
People coming from a C++/Java background are especially prone to
overusing/misusing this "feature". But __private names don't work the
same way as in Java or C++. They just trigger a name mangling whose
purpose is to prevent accidental namespace collisions in subclasses...
How to shuffle a std::vector?
...n Coliru
Make sure to reuse the same instance of rng throughout multiple calls to std::shuffle if you intend to generate different permutations every time!
Moreover, if you want your program to create different sequences of shuffles each time it is run, you can seed the constructor of the random e...
How to change a module variable from another module?
...conduct your experiment there by setting bar.a = 1. This way, you will actually be modifying bar.__dict__['a'] which is the 'real' value of a in this context.
It's a little convoluted with three layers but bar.a = 1 changes the value of a in the module called bar that is actually derived from __ini...
Does Python have an ordered set?
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I'm pretty sure you're not allowed to have two methods both called union in the same class. The last one will "win" and the first one will fail to exist at runtime. This is because OrderedSet.union (no parens) has to refer to a single object.
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What is “android.R.layout.simple_list_item_1”?
...id/platform_frameworks_base/tree/master/core/res/res/layout )
You can actually view the code for the layouts.
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How to check BLAS/LAPACK linkage in NumPy and SciPy?
... Given its widespread usefulness, numpy.__config__ should really be a public API. Nonetheless, you win this round, davost.
– Cecil Curry
Feb 5 '16 at 5:51
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foreach vs someList.ForEach(){}
... The most common one is described in the comments to this question.
Generally, if you are looking to remove multiple items from a list, you would want to separate the determination of which items to remove from the actual removal. It doesn't keep your code compact, but it guarantees that you do n...
What is the difference between ManualResetEvent and AutoResetEvent in .NET?
...or. The ManualResetEvent is the door, which needs to be closed (reset) manually. The AutoResetEvent is a tollbooth, allowing one car to go by and automatically closing before the next one can get through.
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Programmatically Request Access to Contacts
...ss to the address book must be granted before it can be access programmatically. Here is what I ended up doing.
#import <AddressBookUI/AddressBookUI.h>
// Request authorization to Address Book
ABAddressBookRef addressBookRef = ABAddressBookCreateWithOptions(NULL, NULL);
if (ABAddress...
Python unittest - opposite of assertRaises?
...the correct solution in fact. The solution proposed by user9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise ...