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How to merge every two lines into one from the command line?
I have a text file with the following format. The first line is the "KEY" and the second line is the "VALUE".
21 Answers
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Why does Python use 'magic methods'?
I've been playing around with Python recently, and one thing I'm finding a bit odd is the extensive use of 'magic methods', e.g. to make its length available, an object implements a method, def __len__(self) , and then it is called when you write len(obj) .
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Difference between abstraction and encapsulation?
What is the precise difference between encapsulation and abstraction?
39 Answers
39
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How does HashSet compare elements for equality?
..., it will find the hash code using IEqualityComparer<T>.GetHashCode, and store both the hash code and the element (after checking whether the element is already in the set, of course).
To look an element up, it will first use the IEqualityComparer<T>.GetHashCode to find the hash code, t...
What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
...ing CMake. Now the software has a few dependencies. I compiled them myself and installed them on my system.
4 Answers
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How to set size for local image using knitr for markdown?
...ge that I would like to include in an .Rmd file which I will then knit and convert to HTML slides with Pandoc . Per this post , this will insert the local image :

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Reset CSS display property to default value
...with its default value? For example if I have set it to none in one style, and I want to override it in a different with its default.
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Compiling with cython and mingw produces gcc: error: unrecognized command line option '-mno-cygwin'
... using mingw (64-bit).
I'm working with Python 2.6 (Active Python 2.6.6) and with the adequate distutils.cfg file (setting mingw as the compiler)
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Handling exceptions from Java ExecutorService tasks
...her
explicitly or via methods such as
submit, these task objects catch and
maintain computational exceptions, and
so they do not cause abrupt
termination, and the internal
exceptions are not passed to this
method.
When you submit a Runnable, it'll get wrapped in a Future.
Your after...
Can I use the range operator with if statement in Swift?
Is it possible to use the range operator ... and ..< with if statement. Maye something like this:
6 Answers
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