Printing text in a block

def transform_text(text, desired_width):
	words = text.split(" ")
	current_line = []

	for word in words:
		current_line_width = sum([len(x) for x in current_line])
		num_spaces = len(current_line) - 1
		current_line_width_with_spaces = current_line_width + num_spaces

		if (current_line_width_with_spaces + 1 + len(word)) > desired_width:
			# Ready to print line.
			width_diff = desired_width - current_line_width

			num_spaces = len(current_line) - 1
			space_len = width_diff / num_spaces
			remainder = width_diff % num_spaces

			spaces = [" " * space_len for s in range(num_spaces)]
			spaces = [((s + " ") if i < remainder else s) for (i, s) in enumerate(spaces)]

			output = ""
			for i, w in enumerate(current_line):
				output += w
				if i < len(spaces):
				 	output += spaces[i]

			print output
			print desired_width * "*"
			current_line = [word]
		else:
			current_line.append(word)

	if current_line:
		current_line_width = sum([len(x) for x in current_line])
		num_spaces = len(current_line) - 1
		current_line_width_with_spaces = current_line_width + num_spaces
		# Ready to print line.
		width_diff = desired_width - current_line_width

		num_spaces = len(current_line) - 1
		space_len = width_diff / num_spaces
		remainder = width_diff % num_spaces

		spaces = [" " * space_len for s in range(num_spaces)]
		spaces = [((s + " ") if i < remainder else s) for (i, s) in enumerate(spaces)]

		output = ""
		for i, w in enumerate(current_line):
			output += w
			if i < len(spaces):
			 	output += spaces[i]

		print output
		print desired_width * "*"


test_text = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."

# 4 gaps to accomodate 7 desired spaces 
# 1 remainder 3

# 7 / 4 rounded up => 2
# use 2 until using 1 makes sense
# implies 2, 2, 2, 1

# 4 gaps to accomodate 25 spaces

# 25 / 4 => first gaps will be the answer, last gap will be the remainder
# 6, 6, 6, 7

# desired width = 30
# current width = 23
# num words = 5
# expected output = 
# Loremipsum
# Lorem  ipsum
transform_text(test_text, 30)