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django urls without a trailing slash do not redirect

I've got two applications located on two separate computers. On computer A, in the urls.py file I have a line like the following: ...
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?

Following on from this question , can someone explain the following in Scala: 4 Answers ...
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Git: How to remove file from historical commit?

I have commit with id 56f06019 (for example). In that commit i have accidentally commited large file (50Mb). In another commit i add the same file but in the right size (small). Now my repo when i clone is too heavy :( How to remove that large file from repo history to reduce the size of my repo ? ...
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How to write a caption under an image?

I have two images that need to kept inline; I want to write a caption under each image. 9 Answers ...
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What is android:weightSum in android, and how does it work?

I want to know: What is android:weightSum and layout weight, and how do they work? 9 Answers ...
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Chrome Developer Tools: How to find out what is overriding a CSS rule?

Well, this is pretty straightforward. If Chrome's Developer Tools is showing me that a style is overridden, how to see what CSS rule is overriding it? ...
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Install specific git commit with pip

I'm developing a django app and I'm using pip to manage my requirements. How can I do to install a specific git's commit? 4...
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Using try vs if in python

Is there a rationale to decide which one of try or if constructs to use, when testing variable to have a value? 9 Ans...
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How to get execution time in rails console?

I want compare time of execution Post.all and SELECT * FROM posts (or some other statements) How can i get execution time of Post.all ? ...
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Difference between `mod` and `rem` in Haskell

What exactly is the difference between mod and rem in Haskell? 4 Answers 4 ...