a little trap revealed (was Re: Let's Talk About Lambda Functions!)

[Steve Holden]

"Michele Simionato" <mis6 at pitt.edu> wrote in message
news:2259b0e2.0207280652.202f1721 at posting.google.com...
> Now I see the source of my confusion. I thought the print "statement"
> was
> actually an expression with result None. However in Python
>
> result=print("something")
>
> gives a syntax error. Then my question is: why Guido decided to keep
> the distinction between statements (with no value returned) and
> expressions ? what are the advantages ? is it a matter of personal
> taste ? Sorry if these
> questions sounds naive,
>

He made that decision for the same reason he decided not to allow
assignments inside expressions. You can find the justification in the FAQ if
you look for it ... 6.30: Why can't I use assignment in an expression.

regards
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Steve Holden                                 http://www.holdenweb.com/
Python Web Programming                http://pydish.holdenweb.com/pwp/
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