Dear Chandra,

On Mar 11, 3:32 pm, "R (Chandra) Chandrasekhar" <[email protected]>
wrote:
> ========
> sage: def is_even(n):
> ....:     return n%2 == 0
> ....: is_even(2)
> ------------------------------------------------------------

Just press return a second time:
sage: def is_even(n):
....:     return n%2==0
....:
sage: is_even(2)
True

The function definition is only "officially" closed by entering a
blank line.
I guess the point is that in principle it is possible to continue the
function definition (although it would be pointless), such as:
sage: def foo(n):
....:     return 0
....:     print 'bar'
....:

Cheers,
     Simon

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