list comprehensions

[Mikael Olofsson]

"Elaine Jackson" <elainejackson7355 at home.com> wrote:
> [snip] I've discovered that you get an error from
> 
> x = [(i,j) for i in range(7-j) for j in range(3)]
> 
> while
> 
> y = [[(i,j) for i in range(7-j)] for j in range(3)]
> 
> works fine. [snip]

I will not argue about intuitiveness, but FYI:

    z = [(i,j) for j in range(3) for i in range(7-j)]

works fine. Others can explain why it is one way and not the other.

/Mikael Olofsson
Universitetslektor (Associate professor)
Linköpings universitet

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