# What’s new in PyTables 1.3

Author: | Francesc Altet
Contact: | faltet@carabos.com
Author: | Ivan Vilata i Balaguer
Contact: | ivilata@carabos.com

This document details the modifications to PyTables since version 1.2. Its main purpose is help you ensure that your programs will be runnable when you switch from PyTables 1.2 to PyTables 1.3.

## API additions

- The Table.Cols accessor has received a new __setitem__() method that allows doing things like:

  > table.cols[4] = record table.cols.x[4:1000:2] = array # homogeneous column table.cols.Info[4:1000:2] = recarray # nested column

## Backward-incompatible changes

- None

## Deprecated features

- None

## API refinements

- Table.itersequence has changed the default value for ‘sort’ parameter. It is now False by default, as it is not clear if this actually accelerates the iterator, so it is better to let to the user doing the proper checks (if he is interested at all).

## Bug fixes (affecting API)

- None

> Enjoy data!

> —The PyTables Team