XML parse with XMLSchema doesn't give an error's position

[Symon]

Python : sys.version_info(major=2, minor=7, micro=10, releaselevel='final', serial=0)
lxml.etree : (3, 6, 0, 0)
libxml used : (2, 9, 0)
libxml compiled : (2, 9, 0)
libxslt used : (1, 1, 28)
libxslt compiled : (1, 1, 28)

Try this code with valid 1.xsd and invalid 1.xml:

    from lxml.etree import XMLParser, XMLSchema, parse, XMLSyntaxError
    parser = XMLParser(schema=XMLSchema(file='1.xsd'))
    try:
        xml = parse(open('1.xml', mode='rb'), parser)
    except XMLSyntaxError as e:
        for error in parser.error_log:
            print error.message, error.line, error.column

error.line and error.column are always 0.

Here is the link to stackoverflow: http://stackoverflow.com/questions/38209943/lxml-xml-validation-with-xmlschema-doesnt-give-errors-position

[David Losacker (david-losacker)]

Dear all,

we encountered the same problem using the following versions:

Python==3.8.4
lxml==4.5.2

as well as on

Python==3.8.0
lxml==4.4.2

Is there any update/feedback concerning this bug?
Thanks for investigating!

[Mark Grandi (markgrandi)]

same here:

the error_log in the XMLSyntaxError raised by the validation failing are all 0s. I thought it was because i was reading it as a string via `etree.fromstring()` but it still does it with `etree.parse`

<string>:0:0:ERROR:SCHEMASV:SCHEMAV_CVC_COMPLEX_TYPE_3_2_1: Element '{http://schemas.microsoft.com/2011/01/fabric}Parameter', attribute 'DefaultValue': The attribute 'DefaultValue' is not allowed.
<string>:0:0:ERROR:SCHEMASV:SCHEMAV_CVC_COMPLEX_TYPE_4: Element '{http://schemas.microsoft.com/2011/01/fabric}Parameter': The attribute 'Value' is required but missing.
<string>:0:0:ERROR:SCHEMASV:SCHEMAV_CVC_COMPLEX_TYPE_3_2_1: Element '{http://schemas.microsoft.com/2011/01/fabric}Parameter', attribute 'name': The attribute 'name' is not allowed.
<string>:0:0:ERROR:SCHEMASV:SCHEMAV_CVC_COMPLEX_TYPE_4: Element '{http://schemas.microsoft.com/2011/01/fabric}Parameter': The attribute 'Name' is required but missing.
<string>:0:0:ERROR:SCHEMASV:SCHEMAV_CVC_COMPLEX_TYPE_3_2_1: Element '{http://schemas.microsoft.com/2011/01/fabric}Parameter', attribute 'name': The attribute 'name' is not allowed.
<string>:0:0:ERROR:SCHEMASV:SCHEMAV_CVC_COMPLEX_TYPE_4: Element '{http://schemas.microsoft.com/2011/01/fabric}Parameter': The attribute 'Name' is required but missing.