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Python idiom to return first item or None

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Confused about stdin, stdout and stderr?

... purpose of the files from what you describe, I would like to move a level more. when I open these files in /dev folder, how come I never get to see the output of a process running. Say I execute top on the terminal, is it not supposed to output its results onto the stdout file periodically, hence w...
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Why use strong named assemblies?

... same publisher that created the version the application was built with. More on strong naming from Microsoft is in Strong-Named Assemblies (MSDN). share | improve this answer | ...
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Is there a decorator to simply cache function return values?

...wered Mar 12 '12 at 20:28 Paolo MorettiPaolo Moretti 45.4k2121 gold badges9191 silver badges8888 bronze badges ...
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What are Aggregates and PODs and how/why are they special?

...were not explicitly initialized, we get a compile-time error. If there are more initializers than necessary, we get a compile-time error as well. struct X { int i1; int i2; }; struct Y { char c; X x; int i[2]; float f; protected: static double d; private: void g(){} }; Y y ...
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ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)

...ut it actually doesn't fire when an item is changed. I guess you'll need a more bruteforce method then: public class CollectionViewModel : ViewModelBase { public ObservableCollection<EntityViewModel> ContentList { get { return _contentList; } } public Collec...
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Access nested dictionary items via a list of keys?

...for python3 - it will need an from functools import reduce. Also it seems more pythonic to use a for loop. See the quote from What’s New In Python 3.0. Removed reduce(). Use functools.reduce() if you really need it; however, 99 percent of the time an explicit for loop is more readable. Next...
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The transaction manager has disabled its support for remote/network transactions

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Why does .NET foreach loop throw NullRefException when collection is null?

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Is there a REAL performance difference between INT and VARCHAR primary keys?

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