def default()

in opensearchpy/serializer.py [0:0]
60 lines of code
21 McCabe index (conditional complexity)

    def default(self, data):
        if isinstance(data, TIME_TYPES):
            # Little hack to avoid importing pandas but to not
            # return 'NaT' string for pd.NaT as that's not a valid
            # date.
            formatted_data = data.isoformat()
            if formatted_data != "NaT":
                return formatted_data

        if isinstance(data, uuid.UUID):
            return str(data)
        elif isinstance(data, FLOAT_TYPES):
            return float(data)
        elif INTEGER_TYPES and isinstance(data, INTEGER_TYPES):
            return int(data)

        # Special cases for numpy and pandas types
        # These are expensive to import so we try them last.
        try:
            import numpy as np

            if isinstance(
                data,
                (
                    np.int_,
                    np.intc,
                    np.int8,
                    np.int16,
                    np.int32,
                    np.int64,
                    np.uint8,
                    np.uint16,
                    np.uint32,
                    np.uint64,
                ),
            ):
                return int(data)
            elif isinstance(
                data,
                (
                    np.float_,
                    np.float16,
                    np.float32,
                    np.float64,
                ),
            ):
                return float(data)
            elif isinstance(data, np.bool_):
                return bool(data)
            elif isinstance(data, np.datetime64):
                return data.item().isoformat()
            elif isinstance(data, np.ndarray):
                return data.tolist()
        except ImportError:
            pass

        try:
            import pandas as pd

            if isinstance(data, (pd.Series, pd.Categorical)):
                return data.tolist()
            elif isinstance(data, pd.Timestamp) and data is not getattr(
                pd, "NaT", None
            ):
                return data.isoformat()
            elif data is getattr(pd, "NA", None):
                return None
        except ImportError:
            pass

        raise TypeError("Unable to serialize %r (type: %s)" % (data, type(data)))