Question

Reading XML file using XPATH

Asked by: Dushan911

Hi Experts,
I want to read attached xml file and want to print following values using python 2.3 XPATH , xpatheval..

----------------------------
host1.doamin
host2.doamin
----------------------------

BR Dushan

<Config>
   ----
   ----         
   ----         
   ----
    <modules>
        <module hostname="host1.doamin" port="1234"/>
        <module hostname="host2.doamin" port="2345"/>
    </modules>
   ----
   ----         
   ----         
   ----
</Config>

                                  
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Asked On
2009-08-25 at 03:37:04ID24679341
Topic

Python Scripting Language

Participating Experts
1
Points
500
Comments
6

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    Answers

     

    by: Dushan911Posted on 2009-08-25 at 10:25:34ID: 25179928

    This is bit URGENT!

     

    by: zaghaghiPosted on 2009-08-25 at 22:45:56ID: 25184694

    i think that this can help,

    from xml.dom.ext.reader import Sax2
from xml import xpath
doc = Sax2.FromXmlFile('test.xml').documentElement
for url in xpath.Evaluate('.//module[@hostname]', doc):
  print url.value

                                              
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    by: Dushan911Posted on 2009-08-26 at 02:17:04ID: 25185593

    Hi zaghaghi,
    Thanks for the reply!
    But I was expecting solution with using xpathEval.
    I cameup with following code.

    BR Dushan.

    import libxml2, sys, os
 
doc = libxml2.parseFile("abc.xml")
ctxt = doc.xpathNewContext()
res = ctxt.xpathEval("//Config/modules/module/@hostname")
for line in ctxt.xpathEval("//Config/search_clusters/cluster/column/@host"):
    print line.content+":"
doc.freeDoc()
ctxt.xpathFreeContext()
                                              
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    by: Dushan911Posted on 2009-08-26 at 02:20:40ID: 25185617

    Hi zaghaghi,

    And when I run your code I'm getting following error. I'm using standard python 2.3 modules.

    ---------------------------------------------------------
    line 1, in ?
        from xml.dom.ext.reader import Sax2
    ImportError: No module named ext.reader
    ---------------------------------------------------------

    BR Dushan.

     

    by: zaghaghiPosted on 2009-08-26 at 02:40:12ID: 25185715

    your code doesn't work properly?
    i suggest this one

    import libxml2
 
doc = libxml2.parseFile("abc.xml")
res = doc.xpathEval("//Config/modules/module/@hostname")
for line in res:
    print line.content+":"
doc.freeDoc()
                                              
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    by: Dushan911Posted on 2009-08-26 at 05:21:49ID: 31620079

    I asked solution from xpatheval  and he provide sax solution. I already found my own xpatheval solution.

    20120131-EE-VQP-002

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