nested_writer.py

def write_block(names, next_name, f):
    for depth, func_name in enumerate(names):
        f.write("\n" + "    " * depth + "def %s():" % func_name)
    f.write("\n" + "    " * (depth + 1) + "%s()" % next_name)
    for depth, func_name in reversed(list(enumerate(names[1:]))):
        f.write("\n" + "    " * (depth + 1) + "%s()" % func_name)
    f.write("\n") # for readability ;)


def write_nested_functions(total_functions, max_nesting):
    with open('/usr/share/dict/words','r') as name_file:
        fn_names = [line.strip() for line in name_file.readlines()]
    first_name = fn_names[0]
    last_name = fn_names[total_functions]
    fn_names = iter(fn_names)
    with open("empty_nest.py", 'w') as f:
        names = take(fn_names, max_nesting)
        for _ in range(total_functions // max_nesting):
            next_names = take(fn_names, max_nesting)
            write_block(names, next_names[0], f)
            names = next_names
        f.write("def %s():\n    print 'yay'\n" % last_name)
        f.write("%s()" % first_name)

def take(seq, count):
    return [next(seq) for _ in range(count)]



if __name__ == '__main__':
    write_nested_functions(1000, 20)