extra param/size issue with Python wrapper on Windows/RPi about libplctag HOT 8 CLOSED

I did try the same implementation though on windows ( python using anaconda environment) + on a raspberry pi jessie. For those systems the same python module still had errors.

from libplctag.

(above from the email thread on the forum)

from libplctag.

It works on RPi 2B, with the latest 2016-11-25 Raspian image.

from libplctag.

I have to rewrite the wrapper anyway to use the 2.0 API. I will attempt to fix this at that time. As noted, it works on the RPi for me.

from libplctag.

I will be testing on Windows soon.

from libplctag.

Hmm, Windows 10 with Python 3.7.1 does not run. I got it to compile correctly, but I get a similar error to the one above.

return plcTagCreate(attributeString, timeout) ctypes.ArgumentError: argument 1 <class TypeError>: wrong type

Does anyone have experience with ctypes and Python on Windows 10 x64?

from libplctag.

Seems to be a string encoding problem. It seems to work with both Python 2.7 (Linux) and 3.7 (Windows 10). Seems to be fixed. Closing.

from libplctag.

Seem to be getting the same issue that you noted with plcTagCreate returning argument 1:<class 'TypeError'>: wrong type.

This is on windows 10 and python 3.8.10.

Command passed:
python .\tag_rw.py -t uint8 -p 'protocol=ab_eip&gateway=192.168.45.92&path=1,0&cpu=LGX&elem_size=1&name=MySINT'

Tried all the -t variables and always the same traceback:

Traceback (most recent call last):
File ".\tag_rw.py", line 170, in
main()
File ".\tag_rw.py", line 76, in main
tag = libplctag.plc_tag_create(plc_path, CREATE_TIMEOUT)
File "C:\Users\jonathons\Documents\comms_py\plctag\libplctag.py", line 275, in plc_tag_create
return plcTagCreate(attributeString, timeout)
ctypes.ArgumentError: argument 1: <class 'TypeError'>: wrong type

EDIT: Added .encode() to the attributeString in libplctag.py and seems to have fixed the above issue will do some further testing and confirm this. plc_tag_create() now looks like the below in libplctag.py:

def plc_tag_create(attributeString, timeout):
return plcTagCreate(attributeString**.encode()**, timeout)

from libplctag.