[Python-Dev] re: conditional expressions (original) (raw)

Greg Wilson Greg.Wilson@baltimore.com
Wed, 17 Oct 2001 10:46:45 -0400

I just showed the proposed conditional expression syntax to two colleagues, and asked them how they would write the "sign" function (-1 for negative, 0 for zero, +1 for positive) using it. Both of them wrote:

s = if x < 0 then -1 elif x == 0 then 0 else 1

(Well, OK, one of them tested negative, then positive, then returned zero as the 'else', but that's a quibble.) I think most users will expect 'elif' to work in expressions, just as it does in statements; is this already part of the new syntax?

Thanks, Greg

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