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How to use transform_first_arg method in pandera

Best Python code snippet using pandera_python

test_decorators.py

Source:test_decorators.py

...185        # disables no-self-use because having TransformerClass with functions186        # is cleaner.187        @check_input(in_schema)188        @check_output(out_schema)189        def transform_first_arg(self, df):190            return _transform_helper(df)191        @check_input(in_schema)192        @check_output(out_schema)193        def transform_first_arg_with_two_func_args(self, df, x):194            return _transform_helper(df)195        @check_input(in_schema, 0)196        @check_output(out_schema)197        def transform_first_arg_with_list_getter(self, df):198            return _transform_helper(df)199        @check_input(in_schema, 1)200        @check_output(out_schema)201        def transform_secord_arg_with_list_getter(self, x, df):202            return _transform_helper(df)203        @check_input(in_schema, "df")204        @check_output(out_schema)205        def transform_secord_arg_with_dict_getter(self, x, df):206            return _transform_helper(df)207    def _assert_expectation(result_df):208        assert isinstance(result_df, pd.DataFrame)209        assert "column2" in result_df.columns210    transformer = TransformerClass()211    # call method with a dataframe passed as a positional argument212    _assert_expectation(transformer.transform_first_arg(dataframe))213    # call method with a dataframe passed as a first keyword argument214    _assert_expectation(transformer.transform_first_arg(df=dataframe))215    # call method with a dataframe passed as a second keyword argument216    _assert_expectation(217        transformer.transform_first_arg_with_two_func_args(218            x="foo", df=dataframe219        )220    )221    _assert_expectation(222        transformer.transform_first_arg_with_list_getter(dataframe)223    )224    _assert_expectation(225        transformer.transform_secord_arg_with_list_getter(None, dataframe)226    )227    _assert_expectation(228        transformer.transform_secord_arg_with_dict_getter(None, dataframe)...

dataframe_schema.py

Source:dataframe_schema.py

...53        self.out_schema = DataFrameSchema({"column2": Column(Int)})54        self.df = pd.DataFrame({"column1": ["a", "b", "c"]})55    def time_check_input(self):56        @check_input(self.in_schema)57        def transform_first_arg(self):58            return Decorators.transformer(self.df)59    def mem_check_input(self):60        @check_input(self.in_schema)61        def transform_first_arg(self):62            return Decorators.transformer(self.df)63    def peakmem_check_input(self):64        @check_input(self.in_schema)65        def transform_first_arg(self):66            return Decorators.transformer(self.df)67    def time_check_output(self):68        @check_output(self.out_schema)69        def transform_first_arg(self):70            return Decorators.transformer(self.df)71    def mem_check_output(self):72        @check_output(self.out_schema)73        def transform_first_arg(self):74            return Decorators.transformer(self.df)75    def peakmem_check_output(self):76        @check_output(self.out_schema)77        def transform_first_arg(self):...

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