cached_property not type checked correctly

[ilitzroth]

Describe the Bug

import podman

def test2() -> None:
    pc =  podman.PodmanClient(
        base_url="",
        identity="",
    )
    for _container in pc.containers.list():
        pass

this gives an error:

ERROR Object of class cached_property has no attribute list
Object of class property has no attribute list [missing-attribute]
--> tmp.py:9:23
|
9 | for _container in pc.containers.list():
| ^^^^^^^^^^^^^^^^^^

other typecheckers give no such error(ty, mypy). this requires an install of podman>="5.0.0" to reproduce

Sandbox Link

No response

(Only applicable for extension issues) IDE Information

No response

[connernilsen]

Hey @ilitzroth, thanks for reporting this. It looks like Podman overrides cached_property in a way that's incompatible with Pyrefly, so Pyrefly thinks its type is something else.

c.c. @yangdanny97

[ilitzroth]

I am using python 3.10 so it should be able to do the import.

[yangdanny97]

https://pyrefly.org/sandbox/?project=N4IgZglgNgpgziAXKOBDAdgEwEYHsAeAdAA4CeSIEAtsbgE4AuABGAK7oDGDuuUcAOujB1cVJg1LEI6AOZNqtRkzowAbjFRQA%2BhOIxBDOqUSCmZliLFtO3XnHk16zDqg4ALGJi3ERexqTMAYiYyKGkGRCZMCDRsWABedlY4TwBaBSdBGHwOGGJmAElHRgBROhE6E3RzKJgwJhd3T29fGH8ACjB0AEpIpmDdGEiIGXR6GABtMdSVTDqAXVMa8xUGVjpqn1w-CU72Lh4%2BQig6Vi1Gj3buzp7uwUEOKFQ4ewBZUgARVAZUKpq5%2BpaLTSCAMIHtFJQMAAGiYqk0rCG8nQDF6S2WTEhYEIWnhUERTHicIR%2BnQ6KYAAELs0tjtSOSASFfBCYFC0dUMcoYGsNpjWdjcST7lhvqhgeg4D9ODBCUx3l8fu0AIwABju6BU6k0OkkMHamFF4slGFyJF83RA0JAZBUYCgpEI3CoUAowQACqRbfbMRgcAQGrghCN1t8IIHCIJggBlGAytwMBjEOCIAD0KZtdXthHoMhTMHQKcwuA4cBTHEDkBkIYYYYLLHoTFQ8OgqDiMvLQardFDgaY2xrgbgEfQZAYbkDqXUdDgtdl-BAAGZCEqAEzzwSWkCoKQkciIEAgAC%2BVtcNfUADFoDAKGgsHgiGQj0A

sandbox repro

if the import is just functools.cached_property it works (inferred type is int)
if we only use the fallback cached_property function definition it also works (inferred type is Any)

if we have both in the try/except it gets confused :P