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What's the difference between globals(), locals(), and vars()?

What is the difference between globals() , locals() , and vars() ? What do they return? Are updates to the results useful? ...
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Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?

...d to use the IPython Notebook and am enjoying it. Sometimes, I write buggy code that takes massive memory requirements or has an infinite loop. I find the "interrupt kernel" option sluggish or unreliable, and sometimes I have to restart the kernel, losing everything in memory. ...
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AngularJS validation with no enclosing

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Best way to check if a Data Table has a null value in it

what is the best way to check if a Data Table has a null value in it ? 6 Answers 6 ...
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Is having an 'OR' in an INNER JOIN condition a bad idea?

...nsely slow query (several minutes on two tables with only ~50,000 rows each, on SQL Server 2008 if it matters), I narrowed down the problem to an OR in my inner join, as in: ...
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Merge Images Side by Side(Horizontally)

..., 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively. 5 Answers ...
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How do I test which class an object is in Objective-C?

How do I test whether an object is an instance of a particular class in Objective-C? Let's say I want to see if object a is an instance of class b, or class c, how do I go about doing it? ...
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How do I use a file grep comparison inside a bash if/else statement?

When our server comes up we need to check a file to see how the server is configured. 4 Answers ...
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How to access test resources in Scala?

I have a file data.xml in src/test/resources/ . 5 Answers 5 ...
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Rails detect if request was AJAX

In my action I wish to only respond with processing if it was called from an AJAX request. How do I check? 5 Answers ...