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How to use a custom comparison function in Python 3?

In Python 2.x , I could pass custom function to sorted and .sort functions 6 Answers ...
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How do I use extern to share variables between source files?

I know that global variables in C sometimes have the extern keyword. What is an extern variable? What is the declaration like? What is its scope? ...
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Difference between std::result_of and decltype

I have some trouble understanding the need for std::result_of in C++0x. If I understood correctly, result_of is used to obtain the resulting type of invoking a function object with certain types of parameters. For example: ...
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Get position of UIView in respect to its superview's superview

I have a UIView, in which I have arranged UIButtons. I want to find the positions of those UIButtons. 7 Answers ...
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Best way to work with transactions in MS SQL Server Management Studio

Let's say I have an SQL statement that's syntactically and semantically correct so it executes. 2 Answers ...
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Comparing Timer with DispatcherTimer

what is a difference between System.Windows.Forms.Timer() and System.Windows.Threading.DispatcherTimer() ? In which cases, we should use them? any best practices ? ...
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in entity framework code first, how to use KeyAttribute on multiple columns

I'm creating a POCO model to use with entity framework code first CTP5. I'm using the decoration to make a property map to a PK column. But how can I define a PK on more then one column, and specifically, how can I control order of the columns in the index? Is it a result of the order of propert...
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What is the difference between `after_create` and `after_save` and when to use which?

Are after_create and after_save the same as per functionality? 3 Answers 3 ...
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Python Mocking a function from an imported module

I want to understand how to @patch a function from an imported module. 2 Answers 2 ...
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Difference between $state.transitionTo() and $state.go() in Angular ui-router

...metimes we use $state.transitionTo() and sometimes we use $state.go() . Can anyone tell me how they differ and when one should be used over the other? ...