import os

i = open("x.txt", "r")
o = open("xx.txt", "w")
p = open("xxx.txt", "w")

for line in i.readlines():
    o.write (line.replace(" ", "\n"))

i.close()
o.close()

o = open("xx.txt", "r")

for line in o.readlines():
    if not ":" in line:
        p.write(line)

o.close()
p.close()