Karin Dewar, Indentation and the Colon
In a recent post on my other blog I mentioned a second-hand story about how Python's indentation was invented by the wife of Robert Dewar. I added that I wasn't very sure of the details, and I'm glad I did, because the truth was quite different. I received a long email from Lambert Meertens with the real story. I am going to quote it almost completely here, except for some part which he requested
Why Python's Integer Division Floors
I was asked (again) today to explain why integer division in Python returns the floor of the result instead of truncating towards zero like C. For positive numbers, there's no surprise: >>> 5//2 2 But if one of the operands is negative, the result is floored, i.e., rounded away from zero (towards negative infinity): >>> -5//2 -3 >>> 5//-2 -3 This disturbs some people, but there is a good mathemati
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