usr bin env python3 import sys from lxml html import fromstring tostri

#!/usr/bin/env python3
import sys

from lxml.html import fromstring, tostring


def main():
    data = sys.stdin.read()
    tree = fromstring(data.encode('utf-8'))
    try:
        query = sys.argv[1]
    except IndexError:
        sys.stderr.write('Usage: xpath <xpath>')
        sys.exit(1)
    else:
        for elem in tree.xpath(query):
            if isinstance(elem, str):
                print(elem)
            else:
                print(
                    tostring(elem, pretty_print=True, encoding='utf-8')
                    .decode('utf-8').strip()
                )
            print('-' * 10)


if __name__ == '__main__':
    main()