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Nicolas Wavrant
ZODB
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b2fd11ab
Commit
b2fd11ab
authored
Nov 07, 2012
by
Jim Fulton
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Clean up. Need a better way to maintain this information. It rots way
too fast.
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500dbf9f
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README.txt
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README.txt
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b2fd11ab
...
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@@ -6,39 +6,17 @@ Introduction
============
The ZODB package provides a set of tools for using the Zope Object
Database (ZODB). The components you get with the ZODB release are as
follows:
Database (ZODB).
- Core ZODB, including the persistence machinery
- Standard storages such as FileStorage
- The persistent BTrees modules
- ZEO, for scalability needs
- documentation (needs a lot more work)
Our primary development platforms are Linux, Mac OS X, and Windows
XP. The test suite should pass without error on all of these
platforms, although it can take a long time on Windows -- longer if
you use ZoneAlarm. Many particularly slow tests are skipped unless
you pass --all as an argument to test.py.
Our primary development platforms are Linux and Mac OS X. The test
suite should pass without error on these platforms and, hopefully,
Windows, although it can take a long time on Windows -- longer if you
use ZoneAlarm.
Compatibility
=============
ZODB 3.10 requires Python 2.5 or later.
Note --
When using ZEO and upgrading from Python 2.4, you need to upgrade
clients and servers at the same time, or upgrade clients first and
then servers. Clients running Python 2.5 or 2.6 will work with
servers running Python 2.4. Clients running Python 2.4 won't work
properly with servers running Python 2.5 or later due to changes in
the way Python implements exceptions.
ZODB ZEO clients from ZODB 3.2 on can talk to ZODB 3.10 servers. ZODB
ZEO 3.10 Clients can talk to ZODB 3.8, 3.9, and 3.10 ZEO servers.
Note --
ZEO 3.10 servers don't support undo for older clients.
ZODB 4.0 requires Python 2.6 or later.
Prerequisites
=============
...
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@@ -46,10 +24,11 @@ Prerequisites
You must have Python installed. If you're using a system Python
install, make sure development support is installed too.
You also need the transaction, zc.lockfile, ZConfig, zdaemon,
zope.event, zope.interface, zope.proxy and zope.testing packages. If
you don't have them and you can connect to the Python Package Index,
then these will be installed for you if you don't have them.
You also need the transaction, BTrees, persistent, zc.lockfile,
ZConfig, zdaemon, zope.event, zope.interface, zope.proxy and
zope.testing packages. If you don't have them and you can connect to
the Python Package Index, then these will be installed for you if you
don't have them.
Installation
============
...
...
@@ -126,45 +105,6 @@ debugging, checking for consistency, summarizing content, reporting space used
by objects, doing backups, artificial load testing, etc.
Look at the ZODB/script directory for more informations.
History
=======
The historical version numbering schemes for ZODB and ZEO are complicated.
Starting with ZODB 3.4, the ZODB and ZEO version numbers are the same.
In the ZODB 3.1 through 3.3 lines, the ZEO version number was "one smaller"
than the ZODB version number; e.g., ZODB 3.2.7 included ZEO 2.2.7. ZODB and
ZEO were distinct releases prior to ZODB 3.1, and had independent version
numbers.
Historically, ZODB was distributed as a part of the Zope application
server. Jim Fulton's paper at the Python conference in 2000 described
a version of ZODB he called ZODB 3, based on an earlier persistent
object system called BoboPOS. The earliest versions of ZODB 3 were
released with Zope 2.0.
Andrew Kuchling extracted ZODB from Zope 2.4.1 and packaged it for
use by standalone Python programs. He called this version
"StandaloneZODB". Andrew's guide to using ZODB is included in the Doc
directory. This version of ZODB was hosted at
http://sf.net/projects/zodb. It supported Python 1.5.2, and might
still be of interest to users of this very old Python version.
Zope Corporation released a version of ZODB called "StandaloneZODB
1.0" in Feb. 2002. This release was based on Andrew's packaging, but
built from the same CVS repository as Zope. It is roughly equivalent
to the ZODB in Zope 2.5.
Why not call the current release StandaloneZODB? The name
StandaloneZODB is a bit of a mouthful. The standalone part of the
name suggests that the Zope version is the real version and that this
is an afterthought, which isn't the case. So we're calling this
release "ZODB". We also worked on a ZODB4 package for a while and
made a couple of alpha releases. We've now abandoned that effort,
because we didn't have the resources to pursue ot while also maintaining
ZODB(3).
License
=======
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@@ -172,22 +112,13 @@ ZODB is distributed under the Zope Public License, an OSI-approved
open source license. Please see the LICENSE.txt file for terms and
conditions.
The ZODB/ZEO Programming Guide included in the documentation is a
modified version of Andrew Kuchling's original guide, provided under
the terms of the GNU Free Documentation License.
More information
================
We maintain a Wiki page about all things ZODB, including status on
future directions for ZODB. Please see
http://wiki.zope.org/ZODB/FrontPage
See http://zodb.org/
and feel free to contribute your comments. There is a Mailman mailing
list in place to discuss all issues related to ZODB. You can send
questions to
There is a Mailman mailing list in place to discuss all issues related
to ZODB. You can send questions to
zodb-dev@zope.org
...
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@@ -201,23 +132,9 @@ and view its archives at
Note that Zope Corp mailing lists have a subscriber-only posting policy.
Andrew's ZODB Programmers Guide is made available in several
forms, including DVI and HTML. To view it online, point your
browser at the file Doc/guide/zodb/index.html
Bugs and Patches
================
Bug reports and patches should be added to the Launchpad:
https://launchpad.net/zodb
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