Is it possible to show line numbers more than 65535 when you validate an xml file using lxml?

Question

I try to validate an xml file with around 1 million lines using lxml. This is my code.

import codecs
import lxml.etree as ET

xsd_file = codecs.open(r'test.xsd', 'rb', 'utf-8')
xml_file = codecs.open(r'test.xml', 'rb', 'utf-8')

xmlschema_doc = ET.parse(xsd_file)
xmlschema = ET.XMLSchema(xmlschema_doc)

doc = ET.parse(xml_file)

print (xmlschema.error_log.filter_from_errors())

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But I found the output always says "65535:0" if the line in error exceeds 65535. That is,

file:///C:test.xml:65535:0:ERROR:SCHEMASV:SCHEMAV_ELEMENT_CONTENT: Element 'word': Missing child element(s). 
file:///C:test.xml:65535:0:ERROR:SCHEMASV:SCHEMAV_ELEMENT_CONTENT: Element 'word': Missing child element(s).
file:///C:test.xml:65535:0:ERROR:SCHEMASV:SCHEMAV_ELEMENT_CONTENT: Element 'word': Missing child element(s).

So I can't identify where the lines above are. Is there any solutions?

Answer 1

This appears to be a bug in libXML, not in LXML itself persay, and has been there since 2006. It appears that it can't easily be fixed due to backwards compatibility issues.