On Thu, Mar 29, 2018 at 9:40 PM, Asif Iqbal <vad...@gmail.com> wrote:
> > > On Thu, Mar 29, 2018 at 3:41 PM, Peter Otten <__pete...@web.de> wrote: > >> Asif Iqbal wrote: >> >> > On Thu, Mar 29, 2018 at 3:56 AM, Peter Otten <__pete...@web.de> wrote: >> > >> >> Asif Iqbal wrote: >> >> >> >> > I am trying to extract all the *template-name*s, but no success yet >> >> > >> >> > Here is a sample xml file >> >> > >> >> > <collection xmlns:y="http://tail-f.com/ns/rest";> >> >> > <template-metadata xmlns="http://networks.com/nms";> >> >> > <template-name>ALLFLEX-BLOOMINGTON</template-name> >> >> > <type>post-staging</type> >> >> > <device-type>full-mesh</device-type> >> >> > <provider-tenant>ALLFLEX</provider-tenant> >> >> > <subscription xmlns="http://networks.com/nms";> >> >> > <solution-tier>advanced-plus</solution-tier> >> >> > <bandwidth>1000</bandwidth> >> >> > <is-analytics-enabled>true</is-analytics-enabled> >> >> > <is-primary>true</is-primary> >> >> > </subscription> >> >> > .... >> >> > </collection> >> >> > >> >> > with open('/tmp/template-metadata') as f: >> >> > import xml.etree.ElementTree as ET >> >> > root = ET.fromstring(f.read()) >> >> > >> >> > print len(root) >> >> > print root[0][0].text >> >> > for l in root.findall('template-metadata'): >> >> > print l >> >> > >> >> > >> >> > 392 >> >> > ALLFLEX-BLOOMINGTON >> >> > >> >> > >> >> > It prints the length of the tree and the first element of the first >> >> child, >> >> > but when I try to loop through to find all the 'template-name's >> >> > it does not print anything. >> >> > >> >> > What am I doing wrong? >> >> >> >> You have to include the namespace: >> >> >> >> for l in root.findall('{http://networks.com/nms}template-metadata'): >> >> >> > >> > How do I extract the 'template-name' ? >> >> I hoped you'd get the idea. >> >> > This is what I tried >> > >> > for l in root.findall('{http://networks.com/nms}template-metadata'): >> >> Rinse and repeat: >> >> > print l.find('template-name').text >> >> should be >> >> print l.find('{http://networks.com/nms}template-name').text >> >> > >> > I am following the doc >> > https://docs.python.org/2/library/xml.etree.elementtree.html section >> > 19.7.1.3 findall example >> > >> > I get this error attribute error 'NoneType' object has no attribute >> text. >> > I do not understand why l.find('template-name') is NoneType. >> >> Take the time to read >> >> https://docs.python.org/2/library/xml.etree.elementtree.html >> #parsing-xml-with-namespaces > > > Thanks for the links and hints. > > I got it working now > > I used ns = { 'nms' : 'http://networks.com/nms > <http://networks.com/nms%7Dtemplate-name').text>' } > > And then l.find('nms:template-name', ns) > > I also want to extract the namespace and I see this gets me the namespace > > str(root[0]).split('{')[1].split('}')[0] > > Is there a better way to extract the name space? > > > This worked ns = { 'nms' : root[0].tag.split('}')[0].split('{')[1] } for l in root.findall('nms:template-metadata', ns): print l.find('nms:template-name', ns).text Although I think manually creating the ns dictionary looks cleaner :-) > >> >> >> > Here is complete code with output. >> > >> > >> > import xml.etree.ElementTree as ET >> > >> > xmlfile=''' >> > <collection xmlns:y="http://tail-f.com/ns/rest";> >> > <template-metadata xmlns="http://networks.com/nms";> >> > <template-name>ALLFLEX-BLOOMINGTON</template-name> >> > <type>post-staging</type> >> > <device-type>full-mesh</device-type> >> > <provider-tenant>ALLFLEX</provider-tenant> >> > <subscription xmlns="http://networks.com/nms";> >> > <solution-tier>advanced-plus</solution-tier> >> > <bandwidth>1000</bandwidth> >> > <is-analytics-enabled>true</is-analytics-enabled> >> > <is-primary>true</is-primary> >> > </subscription></template-metadata></collection>''' >> > >> > root = ET.fromstring(xmlfile) >> > print root.tag >> > print root[0][0].text >> > for l in root.findall('{http://networks.com/nms}template-metadata'): >> > print l.find('template-name').text >> > >> > collection >> > ALLFLEX-BLOOMINGTON >> > >> > >> ------------------------------------------------------------ >> --------------- >> AttributeError >> > Traceback (most recent call >> > last)<ipython-input-18-73bd6770766a> in <module>() 19 print >> > root[0][0].text 20 for l in >> > root.findall('{http://networks.com/nms}template-metadata'):---> 21 >> > print l.find('template-name').text >> > AttributeError: 'NoneType' object has no attribute 'text' >> >> >> _______________________________________________ >> Tutor maillist - Tutor@python.org >> To unsubscribe or change subscription options: >> https://mail.python.org/mailman/listinfo/tutor >> > > > > -- > Asif Iqbal > PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > > -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
