Announce
上传用户:blenddy
上传日期:2007-01-07
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- Announce: Release of PyGreSQL version 2.4
- ===============================================
- PyGreSQL v2.4 has been released.
- It is available at: ftp://ftp.druid.net/pub/distrib/PyGreSQL.tgz. If
- you are on NetBSD, look in the packages directory under databases. If
- it isn't there yet, it should be there shortly. You can also pick up the
- package files from ftp://ftp.druid.net/pub/distrib/pygresql.pkg.tgz.
- There is also a package in the FreeBSD ports collection but as I write
- this it is at version 2.1. I will try to get that updated as well.
- PostgreSQL is a database system derived from Postgres4.2. It conforms
- to (most of) ANSI SQL and offers many interesting capabilities (C
- dynamic linking for functions or type definition, etc.). This package
- is copyright by the Regents of the University of California, and is
- freely distributable.
- Python is an interpreted programming language. It is object oriented,
- simple to use (light syntax, simple and straightforward statements), and
- has many extensions for building GUIs, interfacing with WWW, etc. An
- intelligent web browser (HotJava like) is currently under development
- (November 1995), and this should open programmers many doors. Python is
- copyrighted by Stichting S Mathematisch Centrum, Amsterdam, The
- Netherlands, and is freely distributable.
- PyGreSQL is a python module that interfaces to a PostgreSQL database. It
- embeds the PostgreSQL query library to allow easy use of the powerful
- PostgreSQL features from a Python script.
- I wanted to have DB-SIG API support in the next release but there are
- enough fixes and improvements to make one more release before starting
- on that. The next version will be 3.0 and have the DB-SIG API support.
- Note that I said this for 2.4 but some required changes from others have
- been slow in coming (I'm not complaining, people do have lives) and
- there were enough fixes that I didn't want to keep them from a release.
- PyGreSQL 2.3 was developed and tested on a NetBSD 1.3_BETA system. It
- is based on the PyGres95 code written by Pascal Andre,
- andre@chimay.via.ecp.fr. I changed the version to 2.0 and updated the
- code for Python 1.5 and PostgreSQL 6.2.1. While I was at it I upgraded
- the code to use full ANSI style prototypes and changed the order of
- arguments to connect. Later versions are fixes and enhancements to that.
- Important changes from PyGreSQL 2.3 to PyGreSQL 2.4:
- - Insert returns None if the user doesn't have select permissions
- on the table. It can (and does) happen that one has insert but
- not select permissions on a table.
- - Added ntuples() method to query object (brit@druid.net)
- - Corrected a bug related to getresult() and the money type
- - Corrected a but related to negative money amounts
- - Allow update based on primary key if munged oid not available and
- table has a primary key
- - Add many __doc__ strings. (andre@via.ecp.fr)
- Important changes from PyGreSQL 2.2 to PyGreSQL 2.3:
- - connect.host returns "localhost" when connected to Unix socket
- (torppa@tuhnu.cutery.fi)
- - Use PyArg_ParseTupleAndKeywords in connect() (torppa@tuhnu.cutery.fi)
- - fixes and cleanups (torppa@tuhnu.cutery.fi)
- - Fixed memory leak in dictresult() (terekhov@emc.com)
- - Deprecated pgext.py - functionality now in pg.py
- - More cleanups to the tutorial
- - Added fileno() method - terekhov@emc.com (Mikhail Terekhov)
- - added money type to quoting function
- - Compiles cleanly with more warnings turned on
- - Returns PostgreSQL error message on error
- - Init accepts keywords (Jarkko Torppa)
- - Convenience functions can be overridden (Jarkko Torppa)
- - added close() method
- Important changes from PyGreSQL 2.1 to PyGreSQL 2.2:
- - Added user and password support thanks to Ng Pheng Siong <ngps@post1.com>
- - Insert queries return the inserted oid
- - Add new pg wrapper (C module renamed to _pg)
- - Wrapped database connection in a class.
- - Cleaned up some of the tutorial. (More work needed.)
- - Added version and __version__. Thanks to thilo@eevolute.com for
- the suggestion.
- Important changes from PyGreSQL 2.0 to PyGreSQL 2.1:
- - return fields as proper Python objects for field type
- - Cleaned up pgext.py
- - Added dictresult method
- Important changes from Pygres95 1.0b to PyGreSQL 2.0:
- - Updated code for PostgreSQL 6.2.1 and Python 1.5.
- - Reformatted code and converted to ANSI .
- - Changed name to PyGreSQL (from PyGres95.)
- - Changed order of arguments to connect function.
- - Created new type pgqueryobject and moved certain methods to it.
- - Added a print function for pgqueryobject
- - Various code changes - mostly stylistic.
- For more information about each package, please have a look to their
- web pages:
- - Python : http://www.python.org/
- - PostgreSQL : http://www.PostgreSQL.org/
- - PyGreSQL : http://www.druid.net/pygresql/
- D'Arcy J.M. Cain
- darcy@druid.net