for i in range (0,len(list)):
 print i ,list[i]

def enumerate(collection):
 'Generates an indexed series: (0,coll[0]), (1,coll[1]) ...'
 i = 0 
 it = iter(collection) 
 while 1: 
 yield (i, it.next()) 
 i += 1

for index，text in enumerate(list)): 
 print index ,text

count = len(open(thefilepath,‘rU’).readlines())

Count = -1 For count,line in enumerate(open(thefilepath,‘rU’))： 
 Pass Count += 1