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How to use validate_tail method in pandera

Best Python code snippet using pandera_python

test_decorators.py

Source:test_decorators.py

...251    @check_io(df=schema, out=schema, head=1)252    def validate_head(df):253        return df254    @check_io(df=schema, out=schema, tail=1)255    def validate_tail(df):256        return df257    @check_io(df=schema, out=schema, sample=1, random_state=100)258    def validate_sample(df):259        return df260    @check_io(df=schema, out=schema, lazy=True)261    def validate_lazy(df):262        return df263    @check_io(df=schema, out=schema, inplace=True)264    def validate_inplace(df):265        return df266    df1 = pd.DataFrame({"col": [1, 1, 1]})267    df2 = pd.DataFrame({"col": [2, 2, 2]})268    invalid_df = pd.DataFrame({"col": [-1, -1, -1]})269    expected = pd.DataFrame({"col": [3, 3, 3]})...

__init__.py

Source:__init__.py

...27            cmd.append(f"--{flag.replace('_', '-')}")28    if in_args.tail:29        cmd.append(f"--tail={in_args.tail}")30    subprocess.call(cmd)31def validate_tail(in_tail):32    """33    Validate the --tail input34    """35    if isinstance(in_tail, int):36        return in_tail37    else:38        if in_tail == "all":39            return in_tail40        else:41            try:42                out_tail = int(in_tail)43                if out_tail > 0:44                    return out_tail45                else:...

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