SyntaxError: invalid syntax. Perhaps you forgot a comma? uaclient.mainwindow - WARNING - showing error: %s')` #83

mukaraT · 2022-06-08T12:48:07Z

I tried to connect with my simeens PLC OPC Server via this opcua python gui client, but unfortunately it is throwing the below error! Any idea how to fix it?

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PS C:\Users\Mukara> & d:/Thangz/Projekte/VC/python_venv/.python_venv/Scripts/Activate.ps1
(.python_venv) PS C:\Users\Mukara> opcua-client
pyqtgraph or numpy are not installed, use of graph feature disabled
ADR ['opc.tcp://localhost:4840', 'opc.tcp://localhost:53530/OPCUA/SimulationServer/']
(.python_venv) PS C:\Users\Mukara> opcua-client
ADR ['opc.tcp://localhost:4840', 'opc.tcp://localhost:53530/OPCUA/SimulationServer/']
uaclient.uaclient - INFO - Connecting to opc.tcp://localhost:4840 with parameters None, None, None, None')
uaclient.mainwindow - WARNING - showing error: %s')
uawidgets.utils - ERROR - ')
Traceback (most recent call last):
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\asyncio\base_events.py", line 1049, in create_connection
    sock = await self._connect_sock(
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\asyncio\base_events.py", line 960, in _connect_sock     
    await self.sock_connect(sock, address)
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\asyncio\proactor_events.py", line 705, in sock_connect  
    return await self._proactor.connect(sock, address)
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\asyncio\tasks.py", line 456, in wait_for
    return fut.result()
asyncio.exceptions.CancelledError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\uawidgets\utils.py", line 21, in wrapper
    result = func(self, *args)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\uaclient\mainwindow.py", line 354, in connect
    self.uaclient.connect(uri)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\uaclient\uaclient.py", line 124, in connect
    self.client.connect()
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\sync.py", line 94, in wrapper
    result = self.tloop.post(aio_func(*args, **kwargs))
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\sync.py", line 52, in post
    return futur.result()
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\concurrent\futures\_base.py", line 446, in result
    return self.__get_result()
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\concurrent\futures\_base.py", line 391, in __get_result
    raise self._exception
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\client\client.py", line 252, in connect
    await self.connect_socket()
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\client\client.py", line 279, in connect_socket
    await self.uaclient.connect_socket(self.server_url.hostname, self.server_url.port)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\client\ua_client.py", line 266, in connect_socket
    await asyncio.wait_for(asyncio.get_running_loop().create_connection(self._make_protocol, host, port), self._timeout)
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\asyncio\tasks.py", line 458, in wait_for
    raise exceptions.TimeoutError() from exc
asyncio.exceptions.TimeoutError
uaclient.mainwindow - WARNING - showing error: %s')
uaclient.uaclient - INFO - Connecting to opc.tcp://localhost:4840 with parameters None, None, None, None')
asyncua.client.client - WARNING - Requested session timeout to be 3600000ms, got 30000ms instead')
QObject::connect: Cannot queue arguments of type 'QTextCursor'
(Make sure 'QTextCursor' is registered using qRegisterMetaType().)
asyncua.common.structures104 - WARNING - renamed "random_number_generator"."4210_30M1Pos" to _random_number_generator_4210_30M1Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "random_number_generator"."4215_30M1Pos" to _random_number_generator_4215_30M1Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V02Msg"."4180Info" to _V02Msg_4180Info_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V02Msg"."4185Info" to _V02Msg_4185Info_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V02Msg"."4177Info" to _V02Msg_4177Info_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_RcpBufferTank"."CoolStep" to _U_RcpBufferTank_CoolStep_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20ProdPl"."4160" to _V20ProdPl_4160_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20ProdPl"."4165" to _V20ProdPl_4165_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V01WRcp"."4160" to _V01WRcp_4160_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V01WRcp"."4165" to _V01WRcp_4165_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Mp"."4215_30M1Pos" to _V20Mp_4215_30M1Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Mp"."4210_30M1Pos" to _V20Mp_4210_30M1Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Mp"."4220_30M1Pos" to _V20Mp_4220_30M1Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Mp"."4215_30M11Pos" to _V20Mp_4215_30M11Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Mp"."4225_30M1Pos" to _V20Mp_4225_30M1Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Mp"."4225_30M11Pos" to _V20Mp_4225_30M11Pos_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."BTFillingDone" to _V20BatchData_BTFillingDone_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."4185MoRU" to _V20BatchData_4185MoRU_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."4180MoLU" to _V20BatchData_4180MoLU_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."4185MoLU" to _V20BatchData_4185MoLU_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."4180MoRU" to _V20BatchData_4180MoRU_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."BTFillingStart" to _V20BatchData_BTFillingStart_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."BTEmptDone" to _V20BatchData_BTEmptDone_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."BTEmptStart" to _V20BatchData_BTEmptStart_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20BatchData"."BTFillingStart"."Data" to _V20BatchData_BTFillingStart_Data_ due to Python syntax')asyncua.common.structures104 - WARNING - renamed "V20BatchData"."BTEmptDone"."Data" to _V20BatchData_BTEmptDone_Data_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3CipToMG1"."Gen" to _U_Ex3CipToMG1_Gen_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3CipToMG1"."Prod" to _U_Ex3CipToMG1_Prod_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3CipToMG1"."CIP" to _U_Ex3CipToMG1_CIP_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3CipToMG1"."CIP"."Gen" to _U_Ex3CipToMG1_CIP_Gen_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3MG1ToCip"."Gen" to _U_Ex3MG1ToCip_Gen_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3MG1ToCip"."Prod" to _U_Ex3MG1ToCip_Prod_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3MG1ToCip"."Cip" to _U_Ex3MG1ToCip_Cip_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex3MG1ToCip"."Cip"."Gen" to _U_Ex3MG1ToCip_Cip_Gen_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex1DeKlogslagToMG1"."MoIn" to _U_Ex1DeKlogslagToMG1_MoIn_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex1DeKlogslagToMG1"."MoOut" to _U_Ex1DeKlogslagToMG1_MoOut_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex1MG1ToDeKlogslag"."MoIn" to _U_Ex1MG1ToDeKlogslag_MoIn_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex1MG1ToDeKlogslag"."MoOut" to _U_Ex1MG1ToDeKlogslag_MoOut_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex2MG1ToTeco"."Prod" to _U_Ex2MG1ToTeco_Prod_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex2MG1ToTeco"."Prod"."BT" to _U_Ex2MG1ToTeco_Prod_BT_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex2TecoToMG1"."Prod" to _U_Ex2TecoToMG1_Prod_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_Ex2TecoToMG1"."Prod"."BT" to _U_Ex2TecoToMG1_Prod_BT_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "V20Reg"."Loupe" to _V20Reg_Loupe_ due to Python syntax')
asyncua.common.structures104 - WARNING - renamed "U_RegLoupeDataMG1"."Data" to _U_RegLoupeDataMG1_Data_ due to Python syntax')
asyncua.common.structures104 - ERROR - Failed to execute auto-generated code from UA datatype: 

@dataclass
class U_StB1:

    '''
    U_StB1 structure autogenerated from StructureDefinition object
    '''

    data_type = ua.NodeId.from_string("ns=3;s=DT_"U_StB1"")

    Alm: ua.Boolean = True
    RstAlm: ua.Boolean = True
')
Traceback (most recent call last):
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\common\structures104.py", line 277, in _generate_object
    exec(code, env)
  File "<string>", line 10
    data_type = ua.NodeId.from_string("ns=3;s=DT_"U_StB1"")
                                      ^^^^^^^^^^^^^^^^^^
SyntaxError: invalid syntax. Perhaps you forgot a comma?
uaclient.mainwindow - WARNING - showing error: %s')
uawidgets.utils - ERROR - invalid syntax. Perhaps you forgot a comma? (<string>, line 10)')
Traceback (most recent call last):
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\uawidgets\utils.py", line 21, in wrapper
    result = func(self, *args)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\uaclient\mainwindow.py", line 354, in connect
    self.uaclient.connect(uri)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\uaclient\uaclient.py", line 126, in connect
    self.client.load_data_type_definitions()
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\sync.py", line 94, in wrapper
    result = self.tloop.post(aio_func(*args, **kwargs))
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\sync.py", line 52, in post
    return futur.result()
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\concurrent\futures\_base.py", line 446, in result
    return self.__get_result()
  File "C:\Users\Mukara\AppData\Local\Programs\Python\Python310\lib\concurrent\futures\_base.py", line 391, in __get_result
    raise self._exception
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\client\client.py", line 685, in load_data_type_definitions
    return await load_data_type_definitions(self, node, overwrite_existing=overwrite_existing)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\common\structures104.py", line 356, in load_data_type_definitions  
    env = await _generate_object(dts.name, dts.sdef, data_type=dts.data_type)
  File "D:\Thangz\Projekte\VC\python_venv\.python_venv\lib\site-packages\asyncua\common\structures104.py", line 277, in _generate_object
    exec(code, env)
  File "<string>", line 10
    data_type = ua.NodeId.from_string("ns=3;s=DT_"U_StB1"")
                                      ^^^^^^^^^^^^^^^^^^
SyntaxError: invalid syntax. Perhaps you forgot a comma?
uaclient.mainwindow - WARNING - showing error: %s')

Regards,
Mukara

The text was updated successfully, but these errors were encountered:

schroeder- · 2022-06-08T13:30:32Z

What Version of asyncua you have installed?
Looks like this issue: FreeOpcUa/opcua-asyncio#813

mukaraT · 2022-06-08T13:53:13Z

I just installed the latest version via PIP!

D:\Thangz\Projekte\VC\python_venv.python_venv\Lib\site-packages\asyncua\ua\uatypes.py is already up-to-date:

.
.
.



@dataclass(frozen=True, init=False, order=True)
class QualifiedName:
    """
    A string qualified with a namespace index.
    """

    NamespaceIndex: UInt16 = 0
    Name: String = ""

    def __init__(self, Name=None, NamespaceIndex=0):
        object.__setattr__(self, "Name", Name)
        object.__setattr__(self, "NamespaceIndex", NamespaceIndex)
        if isinstance(self.NamespaceIndex, str) and isinstance(self.Name, int):
            # originally the order or argument was inversed, try to support it
            logger.warning("QualifiedName are str, int, while int, str is expected, swithcing")

        if not isinstance(self.NamespaceIndex, int) or not isinstance(self.Name, (str, type(None))):
            raise ValueError(f"QualifiedName constructore args have wrong types, {self}")

    def to_string(self):
        return f"{self.NamespaceIndex}:{self.Name}"

    @staticmethod
    def from_string(string):
        if ":" in string:
            try:
                idx, name = string.split(":", 1)
                idx = int(idx)
            except (TypeError, ValueError) as ex:
                raise UaStringParsingError(f"Error parsing string {string}", ex) from ex
        else:
            idx = 0
            name = string
        return QualifiedName(Name=name, NamespaceIndex=idx)

.
.
.

schroeder- · 2022-06-08T14:06:11Z

There is a open pr: FreeOpcUa/opcua-asyncio#784
Maybe you can test it.

mukaraT · 2022-06-08T14:09:33Z

FYI this is my code which I am testing:

from opcua import Client, ua

def browse_recursive(node):
    for childId in node.get_children():
        ch = client.get_node(childId)
        print(ch.get_node_class())
        if ch.get_node_class() == ua.NodeClass.Object:
            browse_recursive(ch)
        elif ch.get_node_class() == ua.NodeClass.Variable:
            try:
                print("{bn} has value {val}".format(
                    bn=ch.get_browse_name(),
                    val=str(ch.get_value()))
                )
            except ua.uaerrors._auto.BadWaitingForInitialData:
                pass
            
if __name__ == "__main__":
    client = Client("opc.tcp://localhost:4840")
    try:
        client.connect()
        root = client.get_root_node()
        print("Objects root node is: ", root)
        browse_recursive(root)
    finally:
        client.disconnect()

oroulet · 2022-06-08T15:00:41Z

You plc has node name with " inside their name. That beaks python syntax.

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SyntaxError: invalid syntax. Perhaps you forgot a comma? uaclient.mainwindow - WARNING - showing error: %s')` #83

SyntaxError: invalid syntax. Perhaps you forgot a comma? uaclient.mainwindow - WARNING - showing error: %s')` #83

mukaraT commented Jun 8, 2022 •

edited

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schroeder- commented Jun 8, 2022

mukaraT commented Jun 8, 2022

schroeder- commented Jun 8, 2022

mukaraT commented Jun 8, 2022

oroulet commented Jun 8, 2022

SyntaxError: invalid syntax. Perhaps you forgot a comma? uaclient.mainwindow - WARNING - showing error: %s')` #83

SyntaxError: invalid syntax. Perhaps you forgot a comma? uaclient.mainwindow - WARNING - showing error: %s')` #83

Comments

mukaraT commented Jun 8, 2022 • edited Loading

schroeder- commented Jun 8, 2022

mukaraT commented Jun 8, 2022

schroeder- commented Jun 8, 2022

mukaraT commented Jun 8, 2022

oroulet commented Jun 8, 2022

mukaraT commented Jun 8, 2022 •

edited

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