Python DLMS Client example not working on Rpi zero

Thank you for the answer.
I use: Bus 001 Device 002: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter. It is cheap RS485 converter from Aliexpress.
But i have basic ask: Where I can define authentication level? I am beginner with Python and i didn't see information about that in readme on Github.

BR,
Damian
EDIT: I see problem from firts post after only run: "python main.py" also command : "python main.py -S /dev/ttyUSB0" not working, but this show that problem isn't in rs485 converter
I check com port number using dmesg | grep tty.

Full command prompt:

pi@raspberrypi:~/gurux.dlms.python/Gurux.DLMS.Client.Example.python $ python main.py
Traceback (most recent call last):
File "main.py", line 44, in <module>
from gurux_serial import GXSerial
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/__init__.py", line 35, in <module>
from .GXSerial import GXSerial
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/GXSerial.py", line 51, in <module>
from ._handlers.GXLinuxHandler import GXLinuxHandler
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/_handlers/__init__.py", line 40, in <module>
from .GXLinuxHandler import GXLinuxHandler
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/_handlers/GXLinuxHandler.py", line 183
raise Exception("getBaudRate failed. ") from e
^
SyntaxError: invalid syntax
pi@raspberrypi:~/gurux.dlms.python/Gurux.DLMS.Client.Example.python $ python main.py -S /dev/ttyUSB0
Traceback (most recent call last):
File "main.py", line 44, in <module>
from gurux_serial import GXSerial
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/__init__.py", line 35, in <module>
from .GXSerial import GXSerial
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/GXSerial.py", line 51, in <module>
from ._handlers.GXLinuxHandler import GXLinuxHandler
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/_handlers/__init__.py", line 40, in <module>
from .GXLinuxHandler import GXLinuxHandler
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/_handlers/GXLinuxHandler.py", line 183
raise Exception("getBaudRate failed. ") from e
^
SyntaxError: invalid syntax
pi@raspberrypi:~/gurux.dlms.python/Gurux.DLMS.Client.Example.python $

Hi,
I use Rpi Zero with WiFi, but I also test RPi 4 without good results.
I check my version and there is ok.

Below I copy full comand promtp from installation on RPi 4

pi@raspberrypi:~ $ git clone https://github.com/gurux/Gurux.DLMS.Python
Cloning into 'Gurux.DLMS.Python'...
remote: Enumerating objects: 2464, done.
remote: Counting objects: 100% (618/618), done.
remote: Compressing objects: 100% (457/457), done.
remote: Total 2464 (delta 469), reused 282 (delta 161), pack-reused 1846
Receiving objects: 100% (2464/2464), 1.28 MiB | 692.00 KiB/s, done.
Resolving deltas: 100% (2070/2070), done.
pi@raspberrypi:~ $ Cd g*
-bash: Cd: command not found
pi@raspberrypi:~ $ ls
Bookshelf Gurux.DLMS.Python
pi@raspberrypi:~ $ cd gur*
-bash: cd: gur*: No such file or directory
pi@raspberrypi:~ $ cd Gu*
pi@raspberrypi:~/Gurux.DLMS.Python $ cd Gurux.DLMS.C*
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ pip instal l -r requirments.txt
Could not open requirements file: [Errno 2] No such file or directory: 'requirme nts.txt'
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ ls
Gurux.DLMS.Client.Example.python.pyproj GXDLMSReader.py LICENSE
Gurux.DLMS.Client.Example.python.sln GXSettings.py main.py
GXCmdParameter.py __init__.py requirements.txt
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ pip instal l -r requirements.txt
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting gurux-common==1.0.13 (from -r requirements.txt (line 1))
Downloading https://files.pythonhosted.org/packages/dd/b2/9c92b62f2b1b2324fa3f 9310a14b27ab3b8c5d426191f3b849e4fef84c1f/gurux_common-1.0.13.tar.gz
Collecting gurux-dlms==1.0.109 (from -r requirements.txt (line 2))
Downloading https://files.pythonhosted.org/packages/df/f9/c0a1d63b9660c040348c 401c84a40c2809d26e8e1230f9f939cb59019b94/gurux_dlms-1.0.109.tar.gz (275kB)
100% |████████████████████████████████| 276kB 764kB/s
Collecting gurux-net==1.0.17 (from -r requirements.txt (line 3))
Downloading https://files.pythonhosted.org/packages/44/eb/deb08c8eaccdadb347ba 5c06965db21f51a2f1efbdd33f50e8b727a80ba5/gurux_net-1.0.17.tar.gz
Collecting gurux-serial==1.0.17 (from -r requirements.txt (line 4))
Downloading https://files.pythonhosted.org/packages/69/a7/722cb6c083c6671432d7 c9b3b2959a44ab37a7815f4635b990518bf2304a/gurux_serial-1.0.17.tar.gz
Building wheels for collected packages: gurux-common, gurux-dlms, gurux-net, gur ux-serial
Running setup.py bdist_wheel for gurux-common ... done
Stored in directory: /home/pi/.cache/pip/wheels/1c/9a/a8/f7e53fd231d936acef177 cc391fccbdcf49150c2bdb256278c
Running setup.py bdist_wheel for gurux-dlms ... done
Stored in directory: /home/pi/.cache/pip/wheels/a0/db/d3/2b1e8b4a4c577f162073a f3253bf516ab8622d8c681d2e51c2
Running setup.py bdist_wheel for gurux-net ... done
Stored in directory: /home/pi/.cache/pip/wheels/e4/e3/35/260766fe7cf06c89232ed 6a01aa5925fc0397197161b63f084
Running setup.py bdist_wheel for gurux-serial ... done
Stored in directory: /home/pi/.cache/pip/wheels/7f/6a/8c/87aa1c667c0520a4392ce 062e1ca6e2031e5ff2003fd84170d
Successfully built gurux-common gurux-dlms gurux-net gurux-serial
Installing collected packages: gurux-common, gurux-dlms, gurux-net, gurux-serial
Successfully installed gurux-common-1.0.13 gurux-dlms-1.0.109 gurux-net-1.0.17 g urux-serial-1.0.17
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ dmesg | gr ep tty
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835 .enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 smsc95xx.macaddr=DC:A6:32:23:11 :AA vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=afafeb9b-02 rootfstype=ext4 elevator=deadline fsck.re pair=yes rootwait quiet splash plymouth.ignore-serial-consoles
[ 0.001058] printk: console [tty1] enabled
[ 1.181992] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 29, base_baud = 0) is a PL011 rev2
[ 533.755688] usb 1-1.3: ch341-uart converter now attached to ttyUSB0
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ python mai n.py
Traceback (most recent call last):
File "main.py", line 37, in <module>
from gurux_serial import GXSerial
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/__init__.py", l ine 35, in <module>
from .GXSerial import GXSerial
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/GXSerial.py", l ine 51, in <module>
from ._handlers.GXLinuxHandler import GXLinuxHandler
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/_handlers/__ini t__.py", line 40, in <module>
from .GXLinuxHandler import GXLinuxHandler
File "/home/pi/.local/lib/python2.7/site-packages/gurux_serial/_handlers/GXLin uxHandler.py", line 183
raise Exception("getBaudRate failed. ") from e
^
SyntaxError: invalid syntax
pi@raspberrypi:~/Gurux.DLMS.Python/Gurux.DLMS.Client.Example.python $ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/&quot;
SUPPORT_URL="http://www.raspbian.org/RaspbianForums&quot;
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs&quot;

Thanks for help,
BR
Damian

update 18.10.2021:

Hello,
I also tried on industrial converter ICP CON without good results.
[ 6753.415390] usb 1-1.3: pl2303 converter now attached to ttyUSB0

Hi Mikko,
I also have this driver in my Raspberry. Maybe could you make image of yours SD card test raspbberry?
If I run your image on my hardware and I have still problem the solution will be in my hardware.

BR,
Damian

Hello,
@Kurumi do you have any idea what I can do with that?

BR
Damian