On 2007-11-11 18:56, Martin v. Löwis wrote: >> First, XML-RPC is not the only mechanism using XML over a network >> connection. Second, you don't want to do this if you're dealing >> with several 100 MB of data just because you want to figure >> out the encoding. > > That's my original claim/question: what SPECIFIC application do > you have in mind that transfers XML over a network and where you > would want to have such a stream codec?
XML-based web services used for business integration, e.g. based on ebXML. A common use case from our everyday consulting business is e.g. passing market and trading data to portfolio pricing web services. > If I have 100MB of XML in a file, using the detection API, I do > > f = open(filename) > s = f.read(100) > while True: > coding = xml.utils.detect_encoding(s) > if coding is not undetermined: > break > s += f.read(100) > f.close() > > Having the loop here is paranoia: in my application, I might be > able to know that 100 bytes are sufficient to determine the encoding > always. Doing the detection with files is easy, but that was never questioned. >>> Again, I don't see the use case. For XML-RPC, it's very feasible >>> and standard procedure to have the entire document in memory >>> (in a processed form). >> You may not see the use case, but that doesn't really mean >> anything if the use cases exist in real life applications, >> right ?! > > Right. However, I' will remain opposed to adding this to the > standard library until I see why one would absolutely need to > have that. Not every piece of code that is useful in some > application should be added to the standard library. Agreed, but the application space of web services is large enough to warrant this. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Nov 11 2007) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ :::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,MacOSX for free ! :::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
