initial creation

py3interm/EXAMPLES/xml_planets_nav.py

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+#!/usr/bin/env python
+'''Use etree navigation to extract planets from solar.xml'''
+import lxml.etree as ET
+
+
+def main():
+    '''Program entry point'''
+    doc = ET.parse('../DATA/solar.xml')  # <1>
+
+    solar_system = doc.getroot()  # <2>
+
+    print(solar_system)
+    print()
+
+    inner = solar_system.find('innerplanets')  # <3>
+    print('Inner:')
+
+    for planet in inner:  # <4>
+        if planet.tag == 'planet':
+            print('\t', planet.get("planetname", "NO NAME"))
+
+    outer = solar_system.find('outerplanets')
+    print('Outer:')
+
+    for planet in outer:
+        print('\t', planet.get("planetname"))
+
+    plutoids = solar_system.find('dwarfplanets')
+    print('Dwarf:')
+
+    for planet in plutoids:
+        print('\t', planet.get("planetname"))
+
+
+if __name__ == '__main__':
+    main()