import hashlib


def make_hash(pwd):
    """
    return hashed version of a single password
    args:
        a single password as a string
    returns:
        a single hashed version of the input password
    """
    encoded_pwd = bytes(pwd, 'utf-8')
    hashed_pwd = hashlib.sha1(encoded_pwd)
    decoded_hash = hashed_pwd.hexdigest()
    return decoded_hash