LwPKT (Python)
Pure-Python encoder/decoder for the LwPKT lightweight packet protocol, mirroring the reference C implementation. Read the full protocol documentation at docs.majerle.eu/projects/lwpkt.
Install
pip install lwpkt
Usage
from lwpkt import LwPKT, LwPKTError
pkt = LwPKT()
pkt.our_addr = 0x01
# Encode an outgoing packet
data = pkt.generate_packet(b"hello", cmd=0x02, addr_to=0x02)
# Feed received bytes in and process them
pkt.write_rx_data(data)
try:
if pkt.rx_process():
received = pkt.rx_get_packet()
print(received.data, received.cmd, received.pkt_from)
except LwPKTError as e:
print("Malformed packet, discarded:", e)
rx_process() raises a typed exception (LwPKTLengthError, LwPKTFieldOverflowError,
LwPKTCRCError, LwPKTStopByteError - all subclasses of LwPKTError) when it encounters
malformed input. The parser resets itself before raising, so it's always safe to keep calling
write_rx_data() / rx_process() after catching one.
License
MIT, see LICENSE.
1 maintainer
Metadata
1 maintainer
Release files for lwpkt 2.0.0
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