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What is __init__.py for?

...ll fail. The __init__.py file is usually empty, but can be used to export selected portions of the package under more convenient name, hold convenience functions, etc. Given the example above, the contents of the init module can be accessed as import spam based on this ...
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What's “tools:context” in Android layout files?

... That attribute is basically the persistence for the "Associated Activity" selection above the layout. At runtime, a layout is always associated with an activity. It can of course be associated with more than one, but at least one. In the tool, we need to know about this mapping (which at runtime h...
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module unsafe for SAFESEH image C++

... did not try rolling my own asm exception handler). What did work was to select build target Release/x64. I am running Windows 10 on a 64-bit machine, and using Visual Studio 2015. The target Release/Win32 works, too. I guess the main thing is to pick "Release". ...
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Method overloading in Objective-C?

... @RaheelSadiq It isn't overloading because the method names (In ObjC: 'selectors') are different. Being different, neither one is considered 'overloaded'. If writeToFile:from: were defined twice, with only the parameter types being different, then that would be overloading. As stated though, t...
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Two versions of python on linux. how to make 2.7 the default

...n in /usr/bin, and may have scripts that depend on this being present, and selected by #! /usr/bin/env python. You can usually get away with running Python 2.6 scripts in 2.7, but do you want to risk it? On top of that, monkeying with /usr/bin can break your package manager's ability to manage pack...
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Linking static libraries to other static libraries

...tiple libraries. Edit: In response to your update, the only way I know to select only the symbols that are required is to manually create the library from the subset of the .o files that contain them. This is difficult, time consuming and error prone. I'm not aware of any tools to help do this (not...
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Xcode 4 and Core Data: How to enable SQL Debugging

... you should Go to Product -> Edit Scheme -> Then from the left panel select Run YOURAPP.app and go to the main panel's Arguments Tab. There you can add an Argument Passed On Launch. You should add -com.apple.CoreData.SQLDebug 4 (number between 1 and 4, higher number makes it more verbose) P...
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Implementing two interfaces in a class with same method. Which interface method is overridden?

...e is only one method to implement, and thus there's nothing to distinguish/select from. The compiler does not have to identify which method is for which interface, because once they are determined to be @Override-equivalent, they're the same method. Resolving potential incompatibilities may be a ...
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How to create a library project in Android Studio and an application project that uses the library p

... To create a library: File > New Module select Android Library To use the library add it as a dependancy: File > Project Structure > Modules > Dependencies Then add the module (android library) as a module dependency. Run your project. It will wo...
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Why should weights of Neural Networks be initialized to random numbers? [closed]

...imization algorithms such as stochastic gradient descent use randomness in selecting a starting point for the search and in the progression of the search. The progression of the search or learning of a neural network is known as convergence. Discovering a sub-optimal solution or local optima result ...