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Running a specific test case in Django when your app has a tests directory

The Django documentation ( http://docs.djangoproject.com/en/1.3/topics/testing/#running-tests ) says that you can run individual test cases by specifying them: ...
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How to empty (“truncate”) a file on linux that already exists and is protected in someway?

I have a file called error.log on my server that I need to frequently truncate. I have rw permissions for the file. Opening the file in vi > deleting all content > saving works (obviously). But when I try the below ...
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What do (lambda) function closures capture?

... remember the name and scope of the variable, not the object it's pointing to. Since all the functions in your example are created in the same scope and use the same variable name, they always refer to the same variable. EDIT: Regarding your other question of how to overcome this, there are two way...
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Iterating C++ vector from the end to the beginning

Is it possible to iterate a vector from the end to the begin? 12 Answers 12 ...
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PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]

I am trying to convert a date from dd/mm/yyyy => yyyy-mm-dd . I have using the mktime() function and other functions but I cannot seem to make it work. I have managed to explode the original date using '/' as the delimiter but I have no success changing the format and swapping the '/' with...
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cancelling a handler.postdelayed process

I am using handler.postDelayed() to create a waiting period before the next stage of my app takes place. During the wait period I am displaying a dialog with progress bar and cancel button. ...
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How can I convert NSDictionary to NSData and vice versa?

I am sending NSString and UIImage using bluetooth. I decided to store both in a NSDictionary and then convert the dictionary to NSData . ...
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Can I change the viewport meta tag in mobile safari on the fly?

I have an AJAX app built for mobile Safari browser that needs to display different types of content. 3 Answers ...
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Update Row if it Exists Else Insert Logic with Entity Framework

Does anyone have suggestions on the most efficient way to implement "update row if it exists else insert" logic using Entity Framework? ...
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How to size an Android view based on its parent's dimensions

... that fills the full screen, and I want a child view, say an ImageView , to take up the whole height, and 1/2 the width? ...