CLN: named parameters for GroupBy.(mean|median|var|std) by topper-123 · Pull Request #31485 · pandas-dev/pandas (original) (raw)

I did fix that is this PR, so no issue necesary.

So in short, in v1.0.0/master we'd have that grp.mean(min_count=1) raised a AssertionError, while now it raised a TypeError, which is the same error code as we'd get for df.mean(min_count=1), so is the correct error type, IMO.