Remove usage of deprecated getchildren() method.

sleekxmpp/stanza/error.py

@@ -89,7 +89,7 @@ class Error(ElementBase):
 
     def get_condition(self):
         """Return the condition element's name."""
-        for child in self.xml.getchildren():
+        for child in self.xml:
             if "{%s}" % self.condition_ns in child.tag:
                 cond = child.tag.split('}', 1)[-1]
                 if cond in self.conditions:
@@ -110,7 +110,7 @@ class Error(ElementBase):
 
     def del_condition(self):
         """Remove the condition element."""
-        for child in self.xml.getchildren():
+        for child in self.xml:
             if "{%s}" % self.condition_ns in child.tag:
                 tag = child.tag.split('}', 1)[-1]
                 if tag in self.conditions:

sleekxmpp/stanza/iq.py

@@ -122,7 +122,7 @@ class Iq(RootStanza):
 
     def get_query(self):
         """Return the namespace of the <query> element."""
-        for child in self.xml.getchildren():
+        for child in self.xml:
             if child.tag.endswith('query'):
                 ns = child.tag.split('}')[0]
                 if '{' in ns:
@@ -132,7 +132,7 @@ class Iq(RootStanza):
 
     def del_query(self):
         """Remove the <query> element."""
-        for child in self.xml.getchildren():
+        for child in self.xml:
             if child.tag.endswith('query'):
                 self.xml.remove(child)
         return self