beremiz

py_ext: fix CSV Writer
py2compat
18 months ago, Edouard Tisserant
61cb4f8f9b55
py_ext: fix CSV Writer

fix POU logic :
- SAVE is a BOOL
- invocation of py_eval on rising edge of SAVE
- remove save python argument

fix python:
- use no encoding for file open (python2)
- re-use detected dialect if any
- use no "rt+" and truncate since no need to re-sniff dialect for output file
- return "OK" instead of "#SUCCESS", preventing POU logic to ACK result
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import absolute_import
from __future__ import print_function
import traceback
import sys
from runtime.Worker import worker
MainWorker = worker()
_PLCObjectSingleton = None
def GetPLCObjectSingleton():
assert _PLCObjectSingleton is not None
return _PLCObjectSingleton
def LogMessageAndException(msg, exp=None):
if exp is None:
exp = sys.exc_info()
if _PLCObjectSingleton is not None:
_PLCObjectSingleton.LogMessage(0, msg + '\n'.join(traceback.format_exception(*exp)))
print(msg)
traceback.print_exception(*exp)
def CreatePLCObjectSingleton(*args, **kwargs):
global _PLCObjectSingleton
from runtime.PLCObject import PLCObject # noqa # pylint: disable=wrong-import-position
_PLCObjectSingleton = PLCObject(*args, **kwargs)
def default_evaluator(tocall, *args, **kwargs):
try:
res = (tocall(*args, **kwargs), None)
except Exception:
res = (None, sys.exc_info())
return res