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In Python, what happens when you import inside of a function? [duplicate]

...every time the function is run? No; or rather, Python modules are essentially cached every time they are imported, so importing a second (or third, or fourth...) time doesn't actually force them to go through the whole import process again. 1 Does it import once at the beginning whether or not...
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C# how to create a Guid value?

...uid(); Hey, its a 'valid', although not very useful, Guid. (the guid is all zeros, if you don't know. Sometimes this is needed to indicate no guid, in cases where you don't want to use a nullable Guid) share | ...
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Map Tiling Algorithm

... The basic idea of this algorithm is to use a pre-processing step to find all edges and then select the correct smoothing tile according to the shape of the edge. The first step would be to find all edges. In the example below the edge tiles marked with an X are all green tiles with a tan tile as ...
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What is Full Text Search vs LIKE

... In general, there is a tradeoff between "precision" and "recall". High precision means that fewer irrelevant results are presented (no false positives), while high recall means that fewer relevant results are missing (no false negatives). Using the LIKE operator gives you 100% precisi...
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Why does visual studio 2012 not find my tests?

... My unittest project targets x64. When I created the project it was originally targeting x86. After switching to x64 all my unit tests disappeared. I had to go to the Test Menu -> Test Setting -Default Processor Architecture -> x64. They still didn't show up. Did a build. Still didn't sh...
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What to gitignore from the .idea folder?

... The doc recommends "share all the .iml module files", so a .gitignore with the following two lines should be fine: .idea/workspace.xml .idea/tasks.xml – Kevin Ortman Dec 30 '12 at 20:38 ...
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angular.element vs document.getElementById or jQuery selector with spin (busy) control

... '#some-id' ) ); You wrap the Document.querySelector() native Javascript call into the angular.element() call. So you always get the element in a jqLite or jQuery object, depending whether or not jQuery is available/loaded. Official documentation for angular.element: If jQuery is available, angula...
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When should I use double instead of decimal?

...these errors are significant enough to warrant much thought however. In all cases, if you want to compare two floating-point numbers that should in theory be equivalent (but were arrived at using different calculations), you need to allow a certain degree of tolerance (how much varies, but is typ...
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SQL Server: Is it possible to insert into two tables at the same time?

My database contains three tables called Object_Table , Data_Table and Link_Table . The link table just contains two columns, the identity of an object record and an identity of a data record. ...
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Why is it said that “HTTP is a stateless protocol”?

HTTP has HTTP Cookies. Cookies allow the server to track the user state, the number of connections, last connection, etc. 1...