Hi,
I have created the following example files to test this
2-base.xsd
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE schema [
<!ENTITY lowalpha "a-z">
<!ENTITY hialpha "A-Z">
<!ENTITY alpha "&lowalpha;&hialpha;">
<!ENTITY digit "0-9">
<!ENTITY uword
"([&digit;]{1,4}|[1-5][&digit;]{4}|6[0-4][&digit;]{3}|65[0-4][&digit;]{2}|655[0-2][&digit;]|6553[0-5])">
<!ENTITY Port ":&uword;">
]>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; xmlns="urn:paul:types2"
targetNamespace="urn:paul:types2" elementFormDefault="qualified"
attributeFormDefault="unqualified">
<xs:simpleType name="PortType">
<xs:restriction base="xs:string">
<xs:pattern value="&Port;"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
2-main.xsd
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; xmlns="urn:paul:main2"
xmlns:t2="urn:paul:types2" targetNamespace="urn:paul:main2"
elementFormDefault="qualified" attributeFormDefault="unqualified">
<xs:import namespace="urn:paul:types2" schemaLocation="2-base.xsd"/>
<xs:element name="Port" type="t2:PortType"/>
</xs:schema>
2.xml
<?xml version="1.0" encoding="UTF-8"?>
<Port xmlns="urn:paul:main2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="urn:paul:main2 2-main.xsd">:10100</Port>
2.xml validates OK in XMLspy and if the value is changed to :101001 for
example, a match error is given so we know the pattern is progressing through
the xs:import etc
2.xml does not validate when used against lxml
from lxml import etree
with open('2-main.xsd', 'r') as schema_file:
my_schema=etree.XMLSchema(etree.parse(schema_file))
filename='2.xml'
with open(filename) as file:
my_xml=etree.parse(file)
my_schema.assertValid(my_xml)
This gives the following error
Traceback (most recent call last):
File "G:\lxml-test\test1b.py", line 11, in <module>
my_schema.assertValid(my_xml)
File "src\lxml\etree.pyx", line 3623, in lxml.etree._Validator.assertValid
lxml.etree.DocumentInvalid: Element '{urn:paul:main1}Port': [facet 'pattern']
The value ':10100' is not accepted by the pattern '[]+'., line 2
Is this something that 'should' be supported by lxml? If so, am I missing
something in the validation?
Should work and I can't reproduce your problem i.e. your given sample files
work for me just fine
(lxml 4.6.2, libxml2 2, 9, 7, libxslt 1, 1, 29).
But I think you're actually using different data according to this output:
Element '{urn:paul:main1}Port'
Note the differing namespace as opposed to the 2.xml sample.
Maybe some typo / difference in your runs with XMLSpy vs lxml is causing the
headaches?
Sidenote (but you probably know this): No need to open() files yourself,
lxml.etree does
it just fine:
# validate.py
from lxml import etree
schema_tree = etree.parse('2-main.xsd')
my_schema = etree.XMLSchema(schema_tree)
my_xml = etree.parse('2.xml')
result = my_schema.assertValid(my_xml)
Best regards,
Holger
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