Mailman 3 August 2005 - lxml - The Python XML Toolkit

[lxml-dev] Verbose validation error messages?
by Gavrie Philipson 04 Aug '05

04 Aug '05

Hi, I'm interested in using lxml's validation capabilities. Specifically, I want to validate XML documents according to a RELAX-NG schema. What seems to be missing from the lxml API is the ability to receive verbose validation error messages: The 'validate' method of the RelaxNG class just returns 0 or 1 depending on whether the document validates. The libxml2 library is able to report much more information, such as the exact line number where the validation fails and the reason (as can be seen when using xmllib2's 'xmllint' tool). Are there any plans to add support for this to lxml? It seems like throwing an exception when the validation fails, and add the information to the exception object, would be a clean way to handle this. -- Gavrie

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[lxml-dev] lxml.etree.parse doesn't accept cStringIO.StringIO instances
by Hamish Lawson 04 Aug '05

04 Aug '05

lxml.etree.parse does not appear to be fully compatible with ElementTree.ElementTree.parse, in that it accepts StringIO.StringIO but not cStringIO.StringIO instances. I'm using lxml 0.7. Hamish Lawson

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[lxml-dev] Verbose validation error messages?
by Gavrie Philipson 03 Aug '05

03 Aug '05

Hi, I'm interested in using lxml's validation capabilities. Specifically, I want to validate XML documents according to a RELAX-NG schema. What seems to be missing from the lxml API is the ability to receive verbose validation error messages: The 'validate' method of the RelaxNG class just returns 0 or 1 depending on whether the document validates. The libxml2 library is able to report much more information, such as the exact line number where the validation fails and the reason (as can be seen when using xmllib2's 'xmllint' tool). Are there any plans to add support for this to lxml? It seems like throwing an exception when the validation fails, and add the information to the exception object, would be a clean way to handle this. -- Gavrie

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[lxml-dev] generating documents with inline schemas
by Jonathan LaCour 01 Aug '05

01 Aug '05

I am trying out lxml as an alternative to cElementTree for an application where I require the use of XML Schemas. Most importantly, I need the ability to generate documents with dynamically defined inline XML Schemas. Looking through the samples and the documentation, it is clear that lxml can _read_ documents with inline XML Schemas, but can it generate them? Any help you could provide would be fantastic. Thanks! Jonathan LaCour Systems Analyst Optio Software

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