fix: encode path to bytes in python3
fix: encode path to bytes in python3

tuxology/bcc,tuxology/bcc,brendangregg/bcc,iovisor/bcc,iovisor/bcc,iovisor/bcc,brendangregg/bcc,tuxology/bcc,brendangregg/bcc,iovisor/bcc,brendangregg/bcc,tuxology/bcc,iovisor/bcc,brendangregg/bcc,tuxology/bcc