Fixed for XSD

Backend-libXML/Parser.py

@@ -78,9 +78,13 @@ def xsd(source: str, xsd: str) -> bool:
     :param xsd: XSD schema to validate XML against
     :return: Message saying, if the validation was successful or not
     """
-    xml_schema = etree.XMLSchema(etree.XML(xsd))
 
-    xml = etree.XML(source)
+    schema_input = BytesIO(xsd.encode("utf-8"))
+    xml_schema = etree.XMLSchema(etree.parse(schema_input).getroot())
+
+    document_input = BytesIO(source.encode("utf-8"))
+    xml = etree.parse(document_input).getroot()
+    
     if xml_schema.validate(xml):
         return "XML is valid."
     else: