Can't access certain members errors

[jmailloux]

Environment data

• Language Server version: 2024.4.1
• OS and version: MacOS 14.4.1 (23E224)
• Python version (& distribution if applicable, e.g. Anaconda): 3.12.2 (virtual environment)

Code Snippet

Repro Steps

Access things like Qt.DisplayRole or Qt.EditRole. Code works fine, but pylance can't find the members.

Logs

pylance_issues.log

requirements.txt

[debonte]

I tried to reproduce this from your screenshot + requirements.txt, but was unsuccessful. Please provide a complete, minimal code sample (as text!) that reproduces the behavior you are seeing. The screenshot you provided above is missing imports, etc.

[jmailloux]

Here's one where it can't find database in cantools.
can_send.txt

[jmailloux]

Here is the log for that.
language_server.txt

[heejaechang]

where can one finds DbcMessage? could you provide full code including import statements and what packages needed to be installed?

that said, for your can_send.txt, some function returned Union so code requires some kind of cast/narrow/typeguard to specify which type code assumes.

import can
import time
import cantools
import cantools.database
from cantools.database.can.database import Database
from cantools.database.can.message import Message

bus = None

def send_message(msg: Message):
    signal_values = {}
    signal_db = {}
    for signal in msg.signals:
        signal_values[signal.name] = signal.minimum
        signal_db[signal.name] = {'minimum':signal.minimum, 'maximum':signal.maximum}

    while True:
        data = msg.encode(signal_values)
        message = can.Message(arbitration_id=msg.frame_id, data=data, is_extended_id=True)
        
        assert(bus is not None)
        bus.send(message)

        for key in signal_values:
            signal_values[key] += 1
            if signal_values[key] > signal_db[key]['maximum']:
                signal_values[key] = signal_db[key]['minimum']

        time.sleep(1)  # Send a message every second

if __name__ == '__main__':
    bus = can.Bus(interface='udp_multicast', channel='239.0.0.1', port=10000, receive_own_messages=False)
    db = cantools.database.load_file('../envgo/dbc/xerotech_battery_j1939.dbc')

    assert(isinstance(db, Database))

    for msg in db.messages:
        if 'VCU' not in msg.senders:
            send_message(msg)
            break