Bug in 1.2.0 - No matching overload found - probably regression

[gothicVI]

Describe the Bug

MWN:

import pandas as pd

df = pd.DataFrame()
rows: list[pd.DataFrame] = [pd.DataFrame()]

# Fails
pd.concat([df, *rows], axis="index", ignore_index=True)

# Passes
tmp: list[pd.DataFrame] = [df, *rows]
pd.concat(tmp, axis="index", ignore_index=True)

The version that now fails used to work in 1.1.1 but now fails with something like

ERROR No matching overload found for function `pandas.core.reshape.concat.concat` called with arguments: (list[DataFrame], axis=Literal['index'], ignore_index=Literal[True]) [no-matching-overload]
  Possible overloads:
    (objs: Iterable[None] | Mapping[HashableT1, None], *, axis: Axis = 0, ..., ignore_index: bool = False, ...) -> Never [closest match]
    (objs: Iterable[NDFrame | None] | Mapping[HashableT1, NDFrame | None], *, axis: Axis = 0, ..., ignore_index: Literal[True], ...) -> Never
    (objs: Iterable[Series[S2] | None] | Mapping[HashableT1, Series[S2] | None], *, axis: AxisIndex = 0, ..., ignore_index: bool = False, ...) -> Series[S2]
    (objs: Iterable[Series | None] | Mapping[HashableT1, Series | None], *, axis: AxisIndex = 0, ..., ignore_index: bool = False, ...) -> Series
    (objs: Iterable[Series | None] | Mapping[HashableT1, Series | None], *, axis: AxisColumn, ..., ignore_index: bool = False, ...) -> DataFrame
    (objs: Iterable[DataFrameT0 | None] | Mapping[HashableT1, DataFrameT0 | None], *, axis: Axis = 0, ..., ignore_index: bool = False, ...) -> DataFrameT0
    (objs: Iterable[NDFrame | None] | Mapping[HashableT1, NDFrame | None], *, axis: Axis = 0, ..., ignore_index: Literal[False] = False, ...) -> DataFrame
  Argument `list[DataFrame]` is not assignable to parameter `objs` with type `Iterable[None] | Mapping[@_, None]` in function `pandas.core.reshape.concat.concat`

Sandbox fails with

ERROR sandbox.py:1:8-20: Stubs for `pandas` are bundled with Pyrefly but the source files for the package are not found. [[missing-source-for-stubs](https://pyrefly.org/en/docs/error-kinds/#missing-source-for-stubs)]

Sandbox Link

No response

(Only applicable for extension issues) IDE Information

No response

[gothicVI]

This might be a regression in the pandas-stubs but pyrefly is the only type checker complaining about this piece of code so I doubt that.

[yangdanny97]

@shobhitmehro

[yangdanny97]

what version of pandas stubs do you have installed? (or are you just using whatever comes with pyrefly)

[gothicVI]

Thanks for the quick reaction. I'm using the latest version which is v3.0.5.260730

[shobhitmehro]

Thanks! I think this is still a Pyrefly bug, but it was not introduced in 1.2. The v3.0.5.260730 pandas stubs exposed a pre existing issue that was in pyrefly