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I have a probleme to get the max value of CategoryLevel I write this but it says Invalidate Predicate.

document=xmlParser.parse("Categories.xml")

xpathQuery="{0}CategoryArray/{0}Category[not({0}CategoryArray/{0}Category/{0}CategoryLevel>{0}CategoryLevel)]".format(namespace)

categories=root.find(xpathQuery)

The xml file

<GetCategoriesResponse xmlns="urn:xxxxxxxx:xxxxx:xxxxxxxx">
<CategoryArray>
    <Category>          
        <CategoryLevel>1</CategoryLevel>            
    </Category>
    <Category>
        <CategoryLevel>2</CategoryLevel>    
    </Category>
    <Category>          
        <CategoryLevel>3</CategoryLevel>            
    </Category>
    <Category>
        <CategoryLevel>2</CategoryLevel>    
    </Category>

I want to check if this xpath query is suitable to extract the maximum value of categoryLevel or not, and i don't understand the answer of the other post. Could you please tell me the source of my error?! Cordially

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  • Possible duplicate of Getting elements with default namespace (no namespace prefix) using XPath Commented Nov 8, 2016 at 14:01
  • I want to check if this xpath query is suitable to extract the maximum value of categoryLevel or not, and i don't understand the answer of the other post. Could you please tell me the source of my error?! Cordially Commented Nov 8, 2016 at 14:17
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