040000 tree d4ddf0ecf91f117d6d0f9dac7ae370428aa7ff12	cleanup
040000 tree 36e01641f27b0749af551d59e8f5dab855ad3a1a	difflib
040000 tree 0416d7a5d875d02763c0d84a4d5bd8a0defe008b	format
040000 tree 37ac3e163ce6a644a649c02951885a33e27e9264	source