Get value from XML in python using xml etree-CodePudding

I'm trying to get a value from a xml string but it's throwing attrib can't be retrieved from None type.

Consider below XML

<summary-report>
  <static-analysis>
    <modules>
     <module sev0issue="0" sev1issue="14">
     </module>
    </modules>
</static-analysis>
<dynamic-analysis>
    <modules>
     <module sev0issue="0" sev1issue="14">
     </module>
    </modules>
</dynamic-analysis>
</summary-report>

How to parse and get the sev0issue under static analysis tag?

I'm trying below code to get the value.

value= ET.fromstring(XmlData) 
issue= value.find('.//summary-report/static-analysis/modules/module')
issueCount= issue.get('sev0issue')

When I try this I'm getting error like there is no attrib sev0issue for Nonetype

CodePudding user response：

Not really sure why, but with ElementTree you don't start searching from the root element. The correct version would be:

issue = value.find('.//static-analysis/modules/module')
issue.get('sev0issue')

If you use lxml, on the other hand, it's more intuitive:

from lxml import etree
value= etree.fromstring(XmlData) 
values.xpath('/summary-report/static-analysis/modules/module/@sev0issue')

Same output.

CodePudding user response：

import xml.etree.ElementTree as ET

XmlData = '''<summary-report>
  <static-analysis>
    <modules>
     <module sev0issue="0" sev1issue="14">
     </module>
    </modules>
</static-analysis>
<dynamic-analysis>
    <modules>
     <module sev0issue="0" sev1issue="14">
     </module>
    </modules>
</dynamic-analysis>
</summary-report>'''

summary_report = ET.fromstring(XmlData)

# Method 1 prints both values from static and dynamic analysis
for a in summary_report:
    for b in a:
        for c in b:
            print(c.attrib['sev0issue'])
print()

# Method 2
print(summary_report[0][0][0].attrib['sev0issue'])

outputs: