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rip out the _ord hack, struct.unpack is faster in py2 and ever so slightly slower in py3, not different enough to justify the hack

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This commit is contained in:
Joel Bender 2017-04-28 09:24:50 -04:00
parent fca91ea457
commit 793263db9d
1 changed files with 3 additions and 13 deletions
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16
modpypes/app.py
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@ -7,6 +7,7 @@ Application
"""
import sys
import struct
from bacpypes.debugging import bacpypes_debugging, ModuleLogger
@ -21,17 +22,6 @@ _debug = 0
_log = ModuleLogger(globals())
#
# _ord
#
if sys.version_info[0] == 2:
_ord = lambda s: ord(s)
elif sys.version_info[0] == 3:
_ord = lambda s: s
else:
raise RuntimeError("unrecognized Python version")
#
# ModbusException
#
@ -80,8 +70,8 @@ def stream_to_packet(data):
if len(data) < 6:
return None
# note funky _ord function, a noop in Python3
pktlen = (_ord(data[4]) << 8) + _ord(data[5]) + 6
# unpack the length
pktlen = struct.unpack(">H", data[4:6])[0] + 6
if (len(data) < pktlen):
return None