python - XML Parsing Child Elements using xml.etree.ElementTree -

i'm trying return uk artists in alphabetical order--i'm not understanding xml parsing. i've gathered debugging , documentation when use findall() method returns list cannot further navigated, correct? how iterate on subelements of parent node, in case <cd>, find of elements country=='uk'? in advance!

def get_uk_artists(xmlstr):       xml = et.fromstring(xmlstr)       artist_list = []       each in xml.findall('cd'):           if each.findall('./cd/country').text == 'uk':               artist_list.append(each.findall('artist').text)       return artist_list.sort() 

the xml is:

 xml_doc ='''<?xml version="1.0" encoding="iso-8859-1"?>     <catalog>         <cd>             <title>empire burlesque</title>             <artist sex="male">bob dylan</artist>             <country>usa</country>             <company>columbia</company>             <price>10.90</price>             <year>1985</year>         </cd>         <cd>             <title>hide heart</title>             <artist sex="female">bonnie tyler</artist>             <country>uk</country>             <company>cbs records</company>             <price>9.90</price>             <year>1988</year>         </cd>         <cd>             <title>greatest hits</title>             <artist sex="female">dolly parton</artist>             <country>usa</country>             <company>rca</company>             <price>9.90</price>             <year>1982</year>         </cd>         <cd>             <title>still got blues</title>             <artist sex="male">gary moore</artist>             <country>uk</country>             <company>virgin records</company>             <price>10.20</price>             <year>1990</year>         </cd>     </catalog>     ''' 

you use:

import xml.etree.elementtree et  xml = et.fromstring(xml_doc) artists = [] cd in xml.findall('cd'):     if cd.find('country').text == 'uk':         artists.append(cd.find('artist').text)  artists.sort() print(artists) 

output

['bonnie tyler', 'gary moore'] 

this loops on each cd in document. if cd has country child element text equal 'uk', cd artist name gets appended list of artists. artists.sort() sorts list in-place.