[EMAIL PROTECTED] wrote:
> mat = [[9, 8, 12, 15], ..., [0, 0, 0, 5]]
>
> print min(el for row in mat for el in row if el > 0)
> ...
> If the OP needs the position he/she can do something like:
<< iterative solution >>
Or you can still use min by keeping the position after the value:
value, x_pos, y_pos = min( (elem, x, y)
for y, row in enumerate(mat)
for x, elem in enumerate(row)
if elem > 0 )
You get the "first" entry with the minimal value.
This code raises ValueError if all entries of mat are <= 0.
--Scott David Daniels
[EMAIL PROTECTED]
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