Increment on certain condition with xrange()

Question

A very short and probably easy to answer question for the ones with more programming experience. I want to increment my counter by one if a certain condition is met. I use xrange() in my for-loop. Can I manually increment i or do I have to build by own counter?

for i in xrange(1,len(sub_meta),2):
    if sub_meta[i][1] < sub_meta[i-1][1]:
            dict_meta[sub_meta[i-1][0]]= sub_meta[i][0]
    elif sub_meta[i][1] == sub_meta[i-1][1]:
            dict_meta[sub_meta[i-1][0]]= ''
            i += 1

Answer 1

i = 1
while i < len(sub_meta):
    if sub_meta[i][1] < sub_meta[i-1][1]:
        dict_meta[sub_meta[i-1][0]]= sub_meta[i][0]
    elif sub_meta[i][1] == sub_meta[i-1][1]:
        dict_meta[sub_meta[i-1][0]]= ''
        i += 1
    i += 2