polars.read_ipc_schema

polars.read_ipc_schema(
    source: str | Path | IO[bytes] | bytes,
) → dict[str, DataType]

Get the schema of an IPC file without reading data.

Parameters:

source

Path to a file or a file-like object (by “file-like object” we refer to objects that have a read() method, such as a file handler like the builtin open function, or a BytesIO instance). For file-like objects, the stream position may not be updated accordingly after reading.

Returns:

dict

Dictionary mapping column names to datatypes