pyiceberg/catalog/memory.py

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from pyiceberg.catalog import URI
from pyiceberg.catalog.sql import SqlCatalog


class InMemoryCatalog(SqlCatalog):
    """
    An in-memory catalog implementation that uses SqlCatalog with SQLite in-memory database.

    This is useful for test, demo, and playground but not in production as it does not support concurrent access.
    """

    def __init__(self, name: str, warehouse: str = "file:///tmp/iceberg/warehouse", **kwargs: str) -> None:
        self._warehouse_location = warehouse
        if URI not in kwargs:
            kwargs[URI] = "sqlite:///:memory:"
        super().__init__(name=name, warehouse=warehouse, **kwargs)