Nic wrote: > In my example I've chosen the number 3. > How should I change the Python code in order to select another number > (e.g. 7)?
Here is a parameterized render(). def render(w, h, suffixes="ab"): pairs = list(unique(range(1, h+1), 2)) for item in unique(pairs, w): for suffix in repeat(*[suffixes]*w): yield tuple((a, b, s) for (a, b), s in izip(item, suffix)) if __name__ == "__main__": for item in render(3, 4, "abc"): print " ".join("%s%s%s" % t for t in item) Experiment with the numbers to see the effects Peter -- http://mail.python.org/mailman/listinfo/python-list