#!/usr/bin/python3
"""
this Module contains
a Python script that takes in a URL
sends a request to the URL and displays the value of the X-Request-Id variable
"""


import urllib.request
import sys

if __name__ == '__main__':
    with urllib.request.urlopen(sys.argv[1]) as response:
        print("{}".format(response.getheader("X-Request-Id")))
