Equivalent to (a ? b : c) ?

[maxm]

From: <malraux at my-deja.com>
Subject: Equivalent to (a ? b : c) ?


> I remember seeing the Python equivalent to C's (a?b:c) inline if
> statement, but I can't find it for the life of me... can some kind soul
> jog my memory for me please?


>From my own personal Python cookbook here is:

######################################################################
## Why aren't there any unary type expression like "(Test)?trueVal:falseVal"
in Python?

Thanks to Python's dynamic typing you can easily add the C "?:" expression
to the language by defining a single function that will work with all types:

---

def ifexp(cond, trueVal, falseVal):
   if cond:
      return trueVal
   else:
      return falseVal

print "You scored %s point%s" % (score, ifexp(score == 1, "", "s"))

---

Note that you'd have to define a whole set of these functions in a
statically typed language, one for each type of the Vals.

Answer by: James Logajan <JamesL at Lugoj.Com>
######################################################################


Kind regards

    Max M


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Max M Rasmussen,   New Media Director    http://www.normik.dk   Denmark
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