schema

API documentation for tradingstrategy.utils.schema Python module in Trading Strategy.

Module description

Schema manipulation utitilies.

Constructing PyArrow schemas.

Note

Legacy. This module is likely to be removed.

For more information about Pyarrow Schemas, see https://arrow.apache.org/docs/python/api/datatypes.html

Functions

append_to_columnar_work_buffer(buffer, item)	Convert tabular data items to columnar.
create_columnar_work_buffer(cls)	Create a columnar work buffer to export data into Pyarrow Tables.
create_pyarrow_schema_for_dataclass(cls[, ...])	Map a Python dataclass to Pyarrow schema.
map_field_to_arrpw(field, hints, core_mappings)	Map a dataclass field to a pyarrow equivalent, respect hints
unmappable(t)