Class PandasDataSource

python/pathway/internals/datasource.py:80–86

@dataclass(frozen=True)
class PandasDataSource(StaticDataSource):
    data: pd.DataFrame

    def is_append_only(self) -> bool:
        return api.DIFF_PSEUDOCOLUMN not in self.data.columns or all(
            self.data[api.DIFF_PSEUDOCOLUMN] == 1
        )


@dataclass(frozen=True)