On Nov 25, 6:49 pm, Donn Ingle <[EMAIL PROTECTED]> wrote:
> Sheesh, I've been going spare trying to find how to do this short-hand:
> if 0 > x < 20: print "within"
>
> So that x must be > 0 and < 20.
>
> I usually do:
> if x > 0 and x < 20: print "within"
>
> What's the rule? Does it even exist?
> I read something like it recently on the list but can't find it, that's
> where I got the urge to try it from. I can't find anything in the docs, but
> then again (imho) the Python docs are like a tangled jungle...
>
> \d
The output of the following program might help:
# chained_comparisons.py
complist = '< <= == != >= >'.split()
for lhs in complist:
for rhs in complist:
print "\n1 %2s x %2s 3:" % (lhs, rhs)
for x in range(5):
chain = " 1 %2s %i %2s 3" % (lhs, x, rhs)
print chain," is ", eval(chain)
- Paddy.
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