On Monday, February 20, 2023 at 7:57:14 PM UTC-8, Michael Torrie wrote:
> On 2/20/23 20:36, Hen Hanna wrote:
> > For a while, i've been curious about a [Tuple Comprehension]
> I've never heard of a "Tuple comprehension." No such thing exists as
> far as I know.
> > So finally i tried it, and the result was a bit surprising...
> >
> >
> > X= [ x for x in range(10) ]
> > X= ( x for x in range(10) )
> > print(X)
> > a= list(X)
> > print(a)
> What was surprising? Don't keep us in suspense!
>
> Using square brackets is a list comprehension. Using parenthesis creates
> a generator expression. It is not a tuple.
ok!
LisX= [x for x in range(10) ]
print( sum( LisX ))
print( max( LisX ))
print( sum( x for x in range(10) ) )
print( max( x for x in range(10) ) )
print( * LisX )
print( max( * LisX ))
print( sum( LisX )) # same as before
# print( sum( * LisX )) <------- Bad syntax !!!
TypeError: sum() takes at most 2 arguments (10 given)
_____________________
(A) print( max( * LisX ))
(B) print( sum( * LisX )) <------- Bad syntax !!!
What's most surprising is.... (A) is ok, and (B) is not.
even tho' max() and sum() have (basically) the same syntax...
( takes one arg , whch is a list )
i've been programming for many years... ( just knew to Python )
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