[Tutor] checking for a condition across all members of a list simultaneously

[Pijus Virketis]

Hi!

I am writing a little crosses-and-naughts game. At its heart is a n*m
matrix of Cells, instances of a class that represents the states of a
single cell (i.e. "-", "x" and "o"). I can set_state() and return_state().
Now I need to implement victory checks. So, for instance, the horizontal
check would in principle go something like this:

def check_horizontal(Matrix):
	for row in Matrix:
		if row[0].return_state() == row[1].return_state() == row[2].return_state(): 
			print "victory!"

Except that I, perhaps out of stubbornness, really don't want to build in
the dimensions of my matrix into the code (what if someone wants to try out
a 5*5 x-o game? :)). What's a nice way of going across the whole row (or
down a column, in the next step)?

Thanks!

Pijus
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