I was reading a Python textbook, and this was in one of the examples. So I wonder what '_' means in something like this:
a = [[] for _ in xrange(10)]
range(2,10,2) [2, 4, 6, 8]
type(_)
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1It's just a name for a variable you don't care about. With "don't care about" I mean, that you're not interested in the value of the variable so there's no need to use a meaningful name. – Matthias Mar 13 '18 at 08:43
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1It is basically an 'ignore' symbol to a variable – David Mar 13 '18 at 08:45
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Actually I want to ask type(_). – Evan Yang Mar 13 '18 at 09:00