Python example

I'm using the example script, which reads all codes and values ​​from the counter using the reader.readAll() function. It works. One caveat is that when using the '-o output.xml' flag, the configuration isn't saved to the file, and everything is read anew each time, but that's a different issue. GXDLMSDirector also reads everything.

But I want to get the values ​​of a specific OBIS code, say "0.0.1.0.0.255." To do this, I use:

reader.readAll()

This code (from examples here on the forum):

obj = GXDLMSClock("0.0.1.0.0.255")
reader.read(obj, 2)

But I get an error:

Data send failed. Try to resend 1/3
Data send failed. Try to resend 2/3
RX: 13:22:33
Traceback (most recent call last):
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\main2.py", line 120, in main
reader.read(obj, 2)
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 409, in read
self.readDataBlock(data, reply)
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 235, in readDataBlock
self.readDLMSPacket(data, reply)
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 164, in readDLMSPacket
self.readDLMSPacket2(data, reply)
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 222, in readDLMSPacket2
raise e
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 213, in readDLMSPacket2
raise TimeoutException(
gurux_common.TimeoutException.TimeoutException: Failed to receive reply from the device in given time.
Ended. Press any key to continue.

If I run it with the command:
py main.py -S COM2:9600:8None1 -i HdlcWithModeE -c 3 -s 22922 -a Low -P ABCDEFGH -g "0.0.1.0.0.255:2"

I get the error:
C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\main.py:52: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
import pkg_resources
gurux_dlms version: 1.0.191
gurux_net version: 1.0.23
gurux_serial version: 1.0.21
['main.py', '-S', 'COM2:9600:8None1', '-i', 'HdlcWithModeE', '-c', '3', '-s', '22922', '-a', 'Low', '-P', 'ABCDEFGH', '-g', '0.0.1.0.0.255:2']
Authentication: 1
ClientAddress: 0x3
ServerAddress: 0x598a
Standard: 0
Traceback (most recent call last):
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\main.py", line 111, in main
reader.initializeConnection()
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 382, in initializeConnection
self.initializeOpticalHead()
File "C:\projects\server\Gurux.DLMS.Python-master\Gurux.DLMS.Client.Example.python\GXDLMSReader.py", line 254, in initializeOpticalHead
raise Exception("Failed to received reply from the media.")
Exception: Failed to received reply from the media.
Ended. Press any key to continue.

Sorry, but the script ended up with the following parameters:
py main.py -S COM2:9600:8None1 -c 3 -s 22922 -a Low -P ABCDEFGH -g "0.0.1.0.0.255:2"
It worked. I spent a long time reading it each time, but I added the -o flag with the .xml file and it worked perfectly.