Function _dict_to_bson

bson/__init__.py:997–1017

Encode a document to BSON.

(
    doc: Any, check_keys: bool, opts: CodecOptions[Any], top_level: bool = True
)

def _dict_to_bson(
    doc: Any, check_keys: bool, opts: CodecOptions[Any], top_level: bool = True
) -> bytes:
    """Encode a document to BSON."""
    if _raw_document_class(doc):
        return cast(bytes, doc.raw)
    try:
        elements = []
        if top_level and "_id" in doc:
            elements.append(_name_value_to_bson(b"_id\x00", doc["_id"], check_keys, opts))
        for key, value in doc.items():
            if not top_level or key != "_id":
                try:
                    elements.append(_element_to_bson(key, value, check_keys, opts))
                except InvalidDocument as err:
                    raise InvalidDocument(f"Invalid document: {err}", doc) from err
    except AttributeError:
        raise TypeError(f"encoder expected a mapping type but got: {doc!r}") from None

    encoded = b"".join(elements)
    return _PACK_INT(len(encoded) + 5) + encoded + b"\x00"


if _USE_C: