Strange issues with version 0.5.0 #37
Comments
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Hey! Thanks for raising this
It looks like an issue with pycrypto in Python 3.10. We have a dependency
via SungrowModbusTcpClient.
An immediate stopgap fix for you would be to run with Python 3.9. I'll look
at what would be involved in moving SungrowModbusTcpClient off pycrypto,
which hasn't seen an update since 2013, and onto a newer, or built-in,
crypto library.
Again, thanks for raising this issue! It's really helpful to find out when
stuff breaks. I want modbus4mqtt to be useful to as many people as possible.
…On Mon, 11 Oct 2021 at 09:31, Plague doctor ***@***.***> wrote:
Yesterday I have updated the version to 0.5.0 and it stopped working. It
is throwing errors:
2021-10-10 23:20:52 INFO Starting modbus4mqtt v0.5.0
2021-10-10 23:20:52 INFO Connected to MQTT.
2021-10-10 23:20:52 ERROR Failed to poll modbus device, attempting to reconnect: PY_SSIZE_T_CLEAN macro must be defined for '#' formats
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus4mqtt.py", line 87, in poll
self._mb.poll()
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 71, in poll
values = self._scan_value_range(table, group, self._scan_batching)
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 138, in _scan_value_range
result = self._mb.read_input_registers(start, count, unit=0x01)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/common.py", line 125, in read_input_registers
return self.execute(request)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/sync.py", line 107, in execute
if not self.connect():
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 54, in connect
self._getkey()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 43, in _getkey
self._setup()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 23, in _setup
self._aes_ecb = AES.new(self._key, AES.MODE_ECB)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/AES.py", line 95, in new
return AESCipher(key, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/AES.py", line 59, in __init__
blockalgo.BlockAlgo.__init__(self, _AES, key, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/blockalgo.py", line 141, in __init__
self._cipher = factory.new(key, *args, **kwargs)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats
2021-10-10 23:21:52 ERROR Failed to poll modbus device, attempting to reconnect: Modbus Error: [Connection] ModbusTcpClient(172.xxx.xxx.xxx:502): Connection unexpectedly closed 0.001899 seconds into read of 25 bytes without response from unit before it closed connection
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus4mqtt.py", line 87, in poll
self._mb.poll()
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 71, in poll
values = self._scan_value_range(table, group, self._scan_batching)
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 138, in _scan_value_range
result = self._mb.read_input_registers(start, count, unit=0x01)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/common.py", line 125, in read_input_registers
return self.execute(request)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/sync.py", line 107, in execute
if not self.connect():
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 54, in connect
self._getkey()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 40, in _getkey
self._key_packet = self._recv(25)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/sync.py", line 298, in _recv
return self._handle_abrupt_socket_close(
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/sync.py", line 343, in _handle_abrupt_socket_close
raise ConnectionException(msg)
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] ModbusTcpClient(172.xxx.xxx.xxx:502): Connection unexpectedly closed 0.001899 seconds into read of 25 bytes without response from unit before it closed connection
2021-10-10 23:22:52 ERROR Failed to poll modbus device, attempting to reconnect: PY_SSIZE_T_CLEAN macro must be defined for '#' formats
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus4mqtt.py", line 87, in poll
self._mb.poll()
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 71, in poll
values = self._scan_value_range(table, group, self._scan_batching)
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 138, in _scan_value_range
result = self._mb.read_input_registers(start, count, unit=0x01)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/common.py", line 125, in read_input_registers
return self.execute(request)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/sync.py", line 107, in execute
if not self.connect():
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 54, in connect
self._getkey()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 43, in _getkey
self._setup()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 23, in _setup
self._aes_ecb = AES.new(self._key, AES.MODE_ECB)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/AES.py", line 95, in new
return AESCipher(key, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/AES.py", line 59, in __init__
blockalgo.BlockAlgo.__init__(self, _AES, key, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/blockalgo.py", line 141, in __init__
self._cipher = factory.new(key, *args, **kwargs)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats
2021-10-10 23:23:52 ERROR Failed to poll modbus device, attempting to reconnect: PY_SSIZE_T_CLEAN macro must be defined for '#' formats
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus4mqtt.py", line 87, in poll
self._mb.poll()
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 71, in poll
values = self._scan_value_range(table, group, self._scan_batching)
File "/usr/local/lib/python3.10/site-packages/modbus4mqtt/modbus_interface.py", line 138, in _scan_value_range
result = self._mb.read_input_registers(start, count, unit=0x01)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/common.py", line 125, in read_input_registers
return self.execute(request)
File "/usr/local/lib/python3.10/site-packages/pymodbus/client/sync.py", line 107, in execute
if not self.connect():
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 54, in connect
self._getkey()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 43, in _getkey
self._setup()
File "/usr/local/lib/python3.10/site-packages/SungrowModbusTcpClient/SungrowModbusTcpClient.py", line 23, in _setup
self._aes_ecb = AES.new(self._key, AES.MODE_ECB)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/AES.py", line 95, in new
return AESCipher(key, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/AES.py", line 59, in __init__
blockalgo.BlockAlgo.__init__(self, _AES, key, *args, **kwargs)
File "/usr/local/lib/python3.10/site-packages/Crypto/Cipher/blockalgo.py", line 141, in __init__
self._cipher = factory.new(key, *args, **kwargs)
SystemError: PY_SSIZE_T_CLEAN macro must be defined for '#' formats
When running directly from console, it is throwing errors but occasionally
reads and publishes values. Once every 20-40 minutes.
When running inside container I am still waiting for a single happy read -
none so far for over an hour.
I call it like that:
modbus4mqtt --hostname mqtt.mydomain.net --port 1883 --username mqtt_user --password password123 --mqtt_topic_prefix solar --config ./SG5K-D.yaml
Please help, the previous version worked fine...
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This was referenced Oct 11, 2021
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This should be fixed with v0.5.1. Please update and let me know how you go. |
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Works again. Thanks :-) |
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Yesterday I have updated the version to 0.5.0 and it stopped working. It is throwing errors:
When running directly from console, it is throwing errors but occasionally reads and publishes values. Once every 20-40 minutes.
When running inside container I am still waiting for a single happy read - none so far for over an hour.
I call it like that:
Please help, the previous version worked fine...
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