generic code to reverse alternate words in a sentence using python -

can please on how reverse alternate words in sentence end using python.

note: not use reversed()

eg:

aspire systems in america

acirema in si systems eripsa

s = 'aspire systems in america'

l = len(s) - 1

rev = ''

for in range (0,l):

rev = rev + str(a[l]) l-- 

• i couldnt find way jump "in" , print it.

can use split/join ?

s = 'aspire systems in america' li = s.split(' ') #["aspire", "systems", "is", "in", "america"] #reverse alternate words index in range (0,len(li),2): #0, 2, 4     rev = ''     ch in li[index]: #'a', 's', 'p' ...         rev = ch + rev     li[index] = rev #now reverse list of words revli = [] word in li:     revli = word + revli print ' '.join(revli) #should print expected result 

it should equivalent following code, uses reversed :

s = 'aspire systems in america' li = s.split(' ') #["aspire", "systems", "is", "in", "america"] #reverse alternate words index in range (0,len(li),2): #0, 2, 4     li[index] = reversed(li[index]) print ' '.join(reversed(li)) #should print expected result 

i cannot test code currently, please tell me if missing or if have question concerning code. if learning programming, it's important understand it

edit: corrected join call