reverse words in sentence

reverse.py

def reverse(string, start, end):
	rev = ""
	for i in range(0, end - start +1):
		rev += string[end - i]
	return rev

def reverse_words(sent):
	rev_sent = reverse(sent, 0, len(sent)-1)
	rev_words = ""; i = 0; j = i
	while(True):
		while((j < len(rev_sent)) and (rev_sent[j] != ' ')): j+=1
		rev_words += reverse(rev_sent, i, j-1)
		if(j >= len(rev_sent)): break
		rev_words += " "
		j += 1; i = j
	return rev_words
#Error: Never ever use & instead of and - & is something different
#Error: range and how does it operate (10,14) will give 10,11,12,13
#Error: better is reversed(range()) or range(start, end, -1)
print reverse_words("here goes out first hello world reversed!")