loops - How do I get python to read only every other line from a file that contains a poem -

i know code reading every line

f=open ('poem.txt','r') line in f:      print line  

how have python read even-numbered lines original file. assuming 1-based numbering of lines.

there quite few different ways, here simple one

with open('poem.txt', 'r') f:     count = 0     line in f:         count+=1         if count % 2 == 0: #this remainder operator             print(line) 

this might little nicer, saving lines declaring , incrementing count:

with open('poem.txt', 'r') f:     count, line in enemerate(f):         if count % 2 == 0:             print(line)