embed python into shell script as a pipe function

gistfile1.sh

#!/usr/bin/env bash

function pipe_in_python() {

python -c "$(cat <<EOPY
import sys
for line in sys.stdin:
        print line.replace( 'asdf', 'ASDF' ),
EOPY
)"

}

echo "asdf.asdf.asdf.e" | pipe_in_python | cut -c5-15