[XML-SIG] Is anyone implementing EXI in Python?

Stanley A. Klein sklein at cpcug.org
Wed Jul 15 21:51:12 CEST 2009

EXI is for data interchange.  That can mean messaging or document/data
storage.  SOAP messages are very verbose, and SOAP messaging can benefit
from EXI, especially if the communications channels have bandwidth or
transit time considerations.  SOAP is increasingly being considered in a
variety of control system applications for which Python makes sense as an
implementation language.  Similarly, scientific applications involving
large amounts of XML-formatted data could benefit from EXI in storing the
data or interchanging it for purposes such as grid processing.

The original application that contributed the technology for EXI was
sending web pages to cell phones.

In general, any applications implemented in Python that involves messaging
or data storage with either bandwidth or storage volume concerns could
benefit from EXI.  And as best I know there are a growing number of such
applications implemented in Python.

Also, why would Java make sense and Python not?

Stan Klein

On Wed, July 15, 2009 1:37 pm, Henry S. Thompson wrote:
> Stanley A. Klein writes:
>> Efficient XML Interchange (EXI) is moving toward adoption by W3C.  It
>> provides a format for efficiently representing XML documents with
>> schema-informed and schema-less modes.
>> There is an open-source Java implementation available.
>> Is anyone working to implement EXI in Python?
> Don't get me wrong, I think EXI is useful, in the right places, but,
> could I ask, why would you want to implement it in Python?  I'd be
> very surprised if any Python XML application is spending anything like
> enough time in the raw parsing activity (as opposed to the
> structure-building activity) to make the marginal gain you might get
> from EXI worth it. . .
> EXI is, IMO, for closely coupled systems in particular messaging
> environments where every bit counts, and I guess I'm having difficulty
> imagining Python in such a context. . .
> ht
> --
>        Henry S. Thompson, School of Informatics, University of Edinburgh
>                          Half-time member of W3C Team
>       10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
>                 Fax: (44) 131 651-1426, e-mail: ht at inf.ed.ac.uk
>                        URL: http://www.ltg.ed.ac.uk/~ht/
> [mail really from me _always_ has this .sig -- mail without it is forged
> spam]


More information about the XML-SIG mailing list