On Tue, 24 Feb 2009 20:50:20 -0800, Girish wrote:
> Hello,
>
> I have a xml file which is as follows:
>
> <pids>
> <Parameter_Class>
> <Parameter Id="pid_031605_093137_283">
> <Identifier>$0000</Identifier>
> <Type>PID</Type>
> <Signal><![CDATA[Parameter Identifiers Supported - $01
> to $20]]></Signal>
> <Description><![CDATA[This PID indicates which
> legislated PIDs]]></Description>
> ..............
> ...............
>
> Can anyone please tell me how to get content of <Signal> tag.. that is,
> how to extract the data "![CDATA[Parameter Identifiers Supported - $01
> to $20]]"
>
> Thanks,
> Girish...
The easy one is to use re module (Regular expression).
# untested
import re
signal_pattern = re.compile('<Signal>(.*)</Signal>')
signals = signal_pattern.findall(xmlstring)
also, you may also use the xml module, which will be more reliable if you
have data like this: <foo attr="<Signal>blooo</Signal>">blah</foo>,
>>> import xml.dom.minidom
>>> xmldata = xml.dom.minidom.parse(open('myfile.xml'))
>>> for node in xmldata.getElementsByTagName('Signal'): print node.toxml()
...
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