gistfile1.txt

f = open('file.txt')

output1 = open('contained.txt','w')
output2 = open('notcontained' , 'w')

rule = 'aeoiu'


for line in f.readlines():
    result = [i for i in rule if i in line]
    if result:
        output1.write(line)
    else :
        output2.write(line)