# Copyright (C) 2022 Sylvain Munaut and Harald Welte
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.


def b2h(b: bytearray) -> str:
    """convert from a sequence of bytes to a string of hex nibbles"""
    return ''.join(['%02x' % (x) for x in b])