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  1. #!/usr/bin/env python
  2. import fileinput, re, sys
  3. from itertools import ifilter
  4.  
  5. re_not_foo = re.compile(r"^(f(o[^o]|[^o])|[^f])*$")
  6. for line in ifilter(re_not_foo.match, fileinput.input()):
  7.     sys.stdout.write(line)
  8.  
Success #stdin #stdout 0.03s 6724KB
comments (?)
stdin 
f, fo or barf
f
fo
barf
foo
'foo'
abdfoode
abdfode
abdfde
abcde
f

 
fo
foo
fooo
ofooa
ofo
ofoo
stdout 
f, fo or barf
f
fo
barf
abdfode
abdfde
abcde
f

 
fo
ofo
https://ideone.com/3CYA6
language:
Python (cpython 2.7.16)
created:
12 years ago
visibility:
secret

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