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How does zip(*[iter(s)]*n) work in Python?
...unction call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
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How do I read / convert an InputStream into a String in Java?
...ou have a java.io.InputStream object, how should you process that object and produce a String ?
59 Answers
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Find which version of package is installed with pip
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As of pip 1.3, there is a pip show command.
$ pip show Jinja2
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Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe
In older versions, pip freeze and grep should do the job nicely.
$ pip freeze | grep Ji...
Implications of foldr vs. foldl (or foldl')
...rstly, Real World Haskell , which I am reading, says to never use foldl and instead use foldl' . So I trust it.
7 Ans...
How to normalize a NumPy array to within a certain range?
...io /= np.max(np.abs(audio),axis=0)
image *= (255.0/image.max())
Using /= and *= allows you to eliminate an intermediate temporary array, thus saving some memory. Multiplication is less expensive than division, so
image *= 255.0/image.max() # Uses 1 division and image.size multiplications
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Mongoose and multiple database in single node.js project
...that contains sub projects. One sub project will have one Mongodb database and Mongoose will be use for wrapping and querying db. But the problem is
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Android emulator and virtualbox cannot run at same time
Whenever I have Virtualbox running, I cannot start an Android emulator image (and vice versa). The error message in the AVD manager is
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Remove sensitive files and their commits from Git history
...ect on GitHub but it contains certain files with sensitive data (usernames and passwords, like /config/deploy.rb for capistrano).
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Which is better option to use for dividing an integer number by 2?
...f the following techniques is the best option for dividing an integer by 2 and why?
23 Answers
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Vertically centering a div inside another div [duplicate]
...n middle works, but you will have to use table-cell on your parent element and inline-block on the child.
This solution is not going to work in IE6 & 7. Yours is the safer way to go for those. But since you tagged your question with CSS3 and HTML5 I was thinking that you don't mind using a mode...