#!/usr/bin/python3
""" test """
if __name__ == "__main__":
    import urllib.request
    import sys
    req = urllib.request.Request(sys.argv[1])
    with urllib.request.urlopen(req) as response:
        html = response.read()
        header = dict(response.info())
        try:
            print(header['X-Request-Id'])
        except Exception:
            pass
