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Checking for empty queryset in Django

What is the recommended idiom for checking whether a query returned any results? Example: 7 Answers ...
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Difference between JSONObject and JSONArray

After having a short look at Google I found this link that describes the difference, yet from a syntax point of view. 8 A...
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How to delete a row by reference in data.table?

My question is related to assignment by reference versus copying in data.table . I want to know if one can delete rows by reference, similar to ...
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How to turn on line numbers in IDLE?

In the main shell of IDLE, errors always return a line number but the development environment doesn't even have line numbers. Is there anyway to turn on line numbers? ...
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How to scroll to specific item using jQuery?

I have a big table with vertical scroll bar. I would like to scroll to a specific line in this table using jQuery/Javascript. ...
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`static` keyword inside function?

I was looking at the source for Drupal 7, and I found some things I hadn't seen before. I did some initial looking in the php manual, but it didn't explain these examples. ...
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Android How to adjust layout in Full Screen Mode when softkeyboard is visible

I have researched a lot to adjust the layout when softkeyboard is active and I have successfully implemented it but the problem comes when I use android:theme="@android:style/Theme.NoTitleBar.Fullscreen" this in my activity tag in manifest file. ...
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Git copy file preserving history [duplicate]

I have a somewhat confusing question in Git. Lets say, I have a file dir1/A.txt committed and git preserves a history of commits ...
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Confused by python file mode “w+”

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How do I make curl ignore the proxy?

How do I make curl ignore the proxy? Setting $NO_PROXY doesn't seem to work for me. 12 Answers ...