False-positive type mismatch with `collections.abc.Sequence` (e.g., python:S5655)

[bers]

• Language: Python
• Rule: S5655
• false-positive since typing.Sequence is an alias of collections.abc.Sequence, so the two should be considered equivalent
• SonarLint for VS Code v3.16.0, not connected

from typing import Sequence as Sequence1

# typing.py: `Sequence = _alias(collections.abc.Sequence, 1)`
from collections.abc import Sequence as Sequence2  # isort: skip

def fun1(ints: Sequence1[int]) -> None:
    print(ints)

def fun2(ints: Sequence2[int]) -> None:
    print(ints)

fun1((1,))  # this works
fun2((1,))  # this works, but SonarLint reports python:S5655

Related issue (for dict):

S5655 & S5890 FP: dict literal not recognized as Mapping

Python 3.9 SonarLint 6.6.0.45106 In the following code sample, SonarLint reports violations of S5655 (Arguments given to functions should be of an expected type) and S5890 (Values assigned to variables should match their type annotations) in the lines marked with the comment FP: from collections.abc import Mapping from typing import Any def f(mapping: Mapping[str, Any]) -> dict[str, Any]: return dict(mapping) f({"a": 2}) # FP S5655 d1: Mapping[str, Any] = {"a": 2} # FP S5890 f(d1) d…

https://sonarsource.atlassian.net/jira/software/c/projects/SONARPY/issues/SONARPY-998

[Andrea_Guarino]

Hi @bers ,

Thanks for reporting this.
Indeed this seem to be related to this already reported problem.

I updated our ticket in the backlog.
Similarly to the other thread, as a workaround, I suggest adding sonar.python.version: "3.9" into SonarLint analyzer properties. This should solve your FPs.

[icfly2 (Ruben)]

For a dataclass type this is still a problem.

@dataclass
class IOConf:
    sb_source: str
    container: str

def get_servicebus_receiver(client: ServiceBusClient, stage_config: IOConf, dlq: bool = False) -> ServiceBusReceiver:
   ...


with ServiceBusClient.from_connection_string(stage.servicebus_conn_str) as client:
    receiver = get_servicebus_receiver(client, stage, dlq=True)

mod_stage = replace(stage)
mod_stage.batch_size = 500
mod_stage.max_wait = 5

with ServiceBusClient.from_connection_string(stage.servicebus_conn_str) as client:
    receiver = get_servicebus_receiver(client, mod_stage, dlq=True) # python:S5655

[ganncamp (G Ann Campbell)]

Hi @icfly2,

The relevant ticket is still open.

 
HTH,
Ann

[icfly2 (Ruben)]

And will there be any progress? It was started a year and a half ago…