CHANGES

--------

Version 0.9.7

The main change in this version is that Astropy is now required as a

dependency, and PyFITS, vo, and asciitable are no longer required.

The documentation now includes a migration guide for using astropy.table

instead of ATpy.

Improvements

~~~~~~~~~~~~

- The tests have been re-factored and can now run on Travis-CI

(http://www.travis-ci.org) to ensure stability in future.

Bug fixes

~~~~~~~~~

- Fixed a bug which caused ATpy to crash if a VO table contained no data

(thanks to @gellule)

- Allow table type to be unicode (thnaks to @ChrisBeaumont)

Version 0.9.6

New Features

~~~~~~~~~~~~

- filenames can now be specified as HTTP or FTP URLs, which will cause

files to be downloaded on-the-fly

- tables can now be read from gzip and bzip2 files for any file-based

format

- tables can now be read from any file object for any file-based format

- added support for LaTeX read/write via asciitable

- PARAM values in VO tables are now read/written as keywords

API Changes

~~~~~~~~~~~

- formats for ASCII output are now Python 2.x formatting specifiers

(instead of tuples).

- added support for memmap= option in FITS tables and table sets

Bug fixes

~~~~~~~~~

- filenames can now be passed as any basestring object, not just str

- when reading from VO tables, the column ID is used instead of the name

since the ID is guaranteed to be unique.

- fixed compatibility with PyFITS 3.0.x

- fixed compatibility with recent versions of h5py

Version 0.9.5.3

Minor fixes

Version 0.9.5.2

Removed automatic cleaning of VO column names

Version 0.9.5.1

Fixed a crash that occurred when importing ATpy if vo was not present

Version 0.9.5

Notes

~~~~~

ATpy is now released under an MIT license

New Features

~~~~~~~~~~~~

- added support for querying the IRSA archive and the Virtual Observatory.

See http://atpy.github.com/format_online.html for more details.

- added support for writing arbitrary ASCII tables using the asciitable module

- added support for copying all column metadata in one go when creating a

new column based on an old column:

>>> t.add_column('b', column_header=t.columns[a])

- read attributes from HDF5 tables

- allow tables to be read/written directly to HDF5 groups

- added a simple HTML writer

API/Internal changes

~~~~~~~~~~~~~~~~~~~~

- use an ordered dictionary for keywords to preserve order

Bug fixes

~~~~~~~~~

- improved handling of booleans in FITS tables

- fixed minor bugs in reading in tables from HDF5 files

- ensure that VO table column names are valid python variable names (patch

provided by Marshall Perrin)

Version 0.9.4

New Features

~~~~~~~~~~~~

- specify whether to used masked arrays by default via an .atpyrc file

and/or via a set_masked_default function.

- added support for the asciitable module, which opens up support to read

in arbitrary ASCII tables. Formats supported by default include CDS

format (aka Machine Readable Tables), RDB, and DAOphot tables. In

addition, the full asciitable API is available.

- added support for reading/writing Table and TableSet to HDF5 files. This

includes appending to existing files, and reading from/writing to

groups.

- improved output when doing 'print table' where table is a Table

instance.

- added support for Python 3

API/Internal changes

~~~~~~~~~~~~~~~~~~~~

- significant speedup for reading large FITS tables

- table columns can now be accessed using the item notation, t['column']

- table can now be accessed by name in table sets, via ts['table_name']

Bug fixes

~~~~~~~~~

- fixed a bug that prevented ASCII FITS tables from being read in

- fixed a bug that meant that only the first table in a list was used when

creating a TableSet from a list of Tables.

- fixed copy() method for Table

- fixed several other minor bugs

Version 0.9.3

Restores compatibility with Python 2.5

Version 0.9.2

The main change in this version is that internal data storage is now done

using NumPy structured arrays (and optionally NumPy masked structured

arrays). We have worked on preventing precision loss and improving

conservation of column types when reading/writing to files/databases.

Finally, we have re-vamped the documentation.

New Features

~~~~~~~~~~~~

- tables are now stored as structured arrays

- new masked= argument during Table initialization (default is False).

Allows masked arrays to be used. To use this feature, it is preferable

to be using a recent svn NumPy version.

- full SQL queries for MySQL, PostGreSQL, and SQLite

- access column information through Table.columns, indexed either by

column name or number. Supports iteration.

- verbose argument for read/write

- new Table.rows() method to select specific rows

- new Table.add_empty_column() method

- new Table.append() method to combine two tables

- new Table.sort() method

- added comments/keywords for TableSet() class as a whole

- new before=/after=/position= arguments for Table.add_column() and

Table.add_empty_column()

- new smart_typing= argument for IPAC tables (see docstring)

- raise Exception if SQL query returns no results

- basic support for primary keys

- added 'overwrite' argument for all types

API/Internal changes

~~~~~~~~~~~~~~~~~~~~

- fits_read, vo_read, ipac_read, sql_read, and equivalent methods are now

depracated - use read(...) instead and specify type= if necessary.

- Table.units, Table.types, Table.nulls, and Table.formats are deprecated.

Use Table.columns instead.

- Read/Write methods are now 'registered' with ATpy, rather than being

inherited by the Table class. This allows users to write their own

readers/writers and register them with atpy.register_reader,

atpy.register_writer, atpy.register_set_reader, and

atpy.register_set_writer

- Allow users to specify new extensions to associate with different table

types via atpy.register_extensions

Bug fixes

~~~~~~~~~

- fixed a bug that meant that values could not be assigned when accessing

a column via attributes (e.g. t.column_name[1] = 1)

- fixed a bug with creating empty table sets

- fixed a bug with pedantic= option for VO tables

- fixed a bug that prevented lists from being passed to add_column

- fixed float precision for IPAC and VO tables

- better handling of the different integer types (unsigned/signed 8, 16,

32, 64-bit) for VO tables, FITS tbales, and SQL databases

- fixed bug when writing strings to FITS files

- fixed issues when reading strings from SQL databases

- new unittest.py

Version 0.9.1

The main changes with this update are the removal of the pkg_ressources

module dependency (which caused problems for a number of users) and a

number of bug fixes.

New Features

~~~~~~~~~~~~

- removed pkg_ressources dependency. Versions are now checked using

distutils, which is more standard

- added support for boolean columns in FITS and VO tables

API changes

~~~~~~~~~~~

- added dtype= argument to Table.add_column to force conversion to a

given type on the fly

- added pendatic= argument for VO Table

- tables in SQL databases are now referred to by name instead of tid

Bug fixes

~~~~~~~~~

- fixed an issue which occurred with string columns in VO tables on

MacOS X with Python 2.6 64-bit

- fixed a bug which prevented the where() method to work correctly

- improved handling of null values

- allow non-standard 'long' datatype for IPAC tables

- fixed bug with remove_column

- improved handling of SQL tables

- fixed bug with IPAC table output

- fixed several other minor bugs

Version 0.9.0

First public beta release