ANNOUNCE: Pyro 1.1 (distributed objects)

Irmen de Jong irmen at --nospam--bigfoot.com
Thu May 11 17:21:18 EDT 2000


PYRO - Python Remote Objects - version 1.1

by Irmen de Jong - irmen at bigfoot.com


WHAT IS PYRO?

Pyro is an acronym for PYthon Remote Objects. It is a basic Distributed
Object Technology system written entirely in Python, and for use in Python
only. With this, it closely resembles Java's Remote Method Invocation (RMI).
It has less similarity to CORBA - which is a system- and language
independent Distributed Object Technology and has much more to offer than
Pyro or RMI.

However, Pyro has some interesting features:

- Naming Service which keeps record of the location of objects. The location
  of the NS can be discovered using a broadcast mechanism, amongst others.

- Support for Python types only restricted by those that the standard
  'pickle' module handles (all builtin types, and user created classes).
  Objects as arguments are also supported when the code for those user
  defined classes is also available on the server side.

- Support for all Python argument types (variable argument lists and keyword
  arguments, *args and **keywords).

- Exceptions that occur in the remote object will actually be raised too on
  the client, just as if the error occured locally. Pyro's exception
  transportation mechanism makes this possible.

- Proxy compiler which automates the task of creating wrapper (proxy)
  classes.

- Dynamic Proxies if you don't like to have pregenerated proxies.

- Full source code in Python.


The most important changes since the previous version (1.0) are:

- Hierarchical naming scheme. Extended NS with hierarchical object naming
functions. This allows for more structured and controlled object naming
while being fully backwards compatible.
- Configuration files to easily specify a set of Pyro configuration items
- Fixed some bugs and made the protocol more stable and less sensitive to
weird data.
- More tests and cleaned up test code
- Documentation update
- A lot of other small changes and fixes.

WHERE CAN I GET IT ?

>From my Pyro homepage: http://www.bigfoot.com/~irmen/pyro.html

It comes with a Python-style license, but is otherwise free for
commercial and non-commercial use.


REFERENCE:

<P><A HREF="http://www.bigfoot.com/~irmen/python.html">
Pyro 1.1</A> - Distributed Object system for Python (7-May-2000)

--
Irmen de Jong -- irmen @
                bigfoot.com





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