We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
DeprecationWarning from qemu_xml
A bunch of below warning are reported in the python3 test of insights-plugins:

~~~ 

 /Users/liuxc/work/insights/insights-core/insights/parsers/qemu_xml.py:149: DeprecationWarning: This method will be removed in future versions.  Use '
list(elem)' or iteration over elem instead.
  /Users/liuxc/work/insights/insights-core/insights/parsers/qemu_xml.py:149: DeprecationWarning: This method will be removed in future versions.  Use '
list(elem)' or iteration over elem instead.
~~~

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `insights/parsers/qemu_xml.py`
Content:
```
1 """
2 QemuXML file ``/etc/libvirt/qemu/*.xml``
3 ----------------------------------------
4 """
5 from .. import XMLParser, parser
6 from insights.specs import Specs
7 
8 
9 @parser(Specs.qemu_xml)
10 class QemuXML(XMLParser):
11     """This class parses xml files under ``/etc/libvirt/qemu/`` using
12     ``XMLParser`` base parser.
13 
14     Sample file::
15 
16         <!--
17         WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
18         OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
19           virsh edit 05-s00c06h0
20         or other application using the libvirt API.
21         -->
22 
23         <domain type='kvm'>
24           <name>05-s00c06h0</name>
25           <uuid>02cf0bba-2bd6-11e7-8337-e4115b9a50d0</uuid>
26           <memory unit='KiB'>12582912</memory>
27           <currentMemory unit='KiB'>12582912</currentMemory>
28           <vcpu placement='static'>4</vcpu>
29           <cputune>
30             <vcpupin vcpu='0' cpuset='1'/>
31             <vcpupin vcpu='1' cpuset='2'/>
32             <vcpupin vcpu='2' cpuset='3'/>
33             <vcpupin vcpu='3' cpuset='4'/>
34             <emulatorpin cpuset='1-4'/>
35           </cputune>
36           <numatune>
37             <memory mode='strict' nodeset='0-1'/>
38             <memnode cellid='0' mode='strict' nodeset='0'/>
39             <memnode cellid='1' mode='strict' nodeset='1'/>
40           </numatune>
41           <os>
42             <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
43             <boot dev='hd'/>
44             <boot dev='network'/>
45             <bootmenu enable='yes' timeout='1000'/>
46             <bios useserial='yes' rebootTimeout='0'/>
47           </os>
48           <features>
49             <acpi/>
50             <apic/>
51             <pae/>
52           </features>
53           <cpu>
54             <numa>
55               <cell id='0' cpus='0-1' memory='6291456' unit='KiB'/>
56               <cell id='1' cpus='2-3' memory='6291456' unit='KiB'/>
57             </numa>
58           </cpu>
59           <clock offset='utc'/>
60           <on_poweroff>destroy</on_poweroff>
61           <on_reboot>restart</on_reboot>
62           <on_crash>restart</on_crash>
63           <devices>
64             <emulator>/usr/libexec/qemu-kvm</emulator>
65             <disk type='file' device='disk'>
66               <driver name='qemu' type='raw' cache='none' io='threads'/>
67               <source file='/var/lib/libvirt/images/05-s00c06h0_1.img'/>
68               <target dev='vda' bus='virtio'/>
69               <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
70             </disk>
71             <controller type='usb' index='0'>
72               <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
73             </controller>
74             <controller type='pci' index='0' model='pci-root'/>
75             <controller type='virtio-serial' index='0'>
76               <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
77             </controller>
78             <interface type='hostdev' managed='yes'>
79               <mac address='b2:59:73:15:00:00'/>
80               <source>
81                 <address type='pci' domain='0x0000' bus='0x04' slot='0x10' function='0x0'/>
82               </source>
83               <rom bar='on' file='/opt/vcp/share/ipxe/808610ed.rom'/>
84               <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
85             </interface>
86             <interface type='hostdev' managed='yes'>
87               <mac address='b2:59:73:15:00:01'/>
88               <source>
89                 <address type='pci' domain='0x0000' bus='0x04' slot='0x10' function='0x1'/>
90               </source>
91               <rom bar='on' file='/opt/vcp/share/ipxe/808610ed.rom'/>
92               <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
93             </interface>
94             <serial type='pty'>
95               <target port='0'/>
96             </serial>
97             <console type='pty'>
98               <target type='serial' port='0'/>
99             </console>
100             <channel type='pipe'>
101               <source path='/var/lib/libvirt/qemu/channels/FROM-05-s00c06h0'/>
102               <target type='virtio' name='virtio2host'/>
103               <address type='virtio-serial' controller='0' bus='0' port='1'/>
104             </channel>
105             <channel type='pipe'>
106               <source path='/var/lib/libvirt/qemu/channels/HGC-05-s00c06h0'/>
107               <target type='virtio' name='virtio_host_guest_check'/>
108               <address type='virtio-serial' controller='0' bus='0' port='2'/>
109             </channel>
110             <input type='mouse' bus='ps2'/>
111             <input type='keyboard' bus='ps2'/>
112             <graphics type='vnc' port='-1' autoport='yes'>
113               <listen type='address'/>
114             </graphics>
115             <video>
116               <model type='cirrus' vram='16384' heads='1' primary='yes'/>
117               <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
118             </video>
119             <watchdog model='i6300esb' action='reset'>
120               <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
121             </watchdog>
122             <memballoon model='virtio'>
123               <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
124             </memballoon>
125           </devices>
126         </domain>
127 
128     Examples:
129         >>> xml_numa.file_name == 'vm.xml'
130         True
131         >>> xml_numa.vm_name == '05-s00c06h0'
132         True
133         >>> memnode = xml_numa.get_elements('./numatune/memnode', None)
134         >>> len(memnode[0].items()) == 3
135         True
136         >>> len(memnode[1].items()) == 3
137         True
138         >>> memnode[0].get('cellid') == '0'
139         True
140         >>> memnode[1].get('mode') == 'strict'
141         True
142     """
143     def parse_dom(self):
144         if self.dom is None:
145             return
146         else:
147             domain = {}
148             for child in self.dom:
149                 if not child.getchildren():
150                     domain[child.tag] = child.text
151                 else:
152                     domain[child.tag] = [c.items() for c in child.getchildren()]
153 
154             return domain
155 
156     @property
157     def vm_name(self):
158         return self.data.get('name', None)
159
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/insights/parsers/qemu_xml.py b/insights/parsers/qemu_xml.py
--- a/insights/parsers/qemu_xml.py
+++ b/insights/parsers/qemu_xml.py
@@ -146,10 +146,10 @@
         else:
             domain = {}
             for child in self.dom:
-                if not child.getchildren():
+                if len(child) == 0:
                     domain[child.tag] = child.text
                 else:
-                    domain[child.tag] = [c.items() for c in child.getchildren()]
+                    domain[child.tag] = [c.items() for c in child]
 
             return domain

{"golden_diff": "diff --git a/insights/parsers/qemu_xml.py b/insights/parsers/qemu_xml.py\n--- a/insights/parsers/qemu_xml.py\n+++ b/insights/parsers/qemu_xml.py\n@@ -146,10 +146,10 @@\n         else:\n             domain = {}\n             for child in self.dom:\n-                if not child.getchildren():\n+                if len(child) == 0:\n                     domain[child.tag] = child.text\n                 else:\n-                    domain[child.tag] = [c.items() for c in child.getchildren()]\n+                    domain[child.tag] = [c.items() for c in child]\n \n             return domain\n", "issue": "DeprecationWarning from qemu_xml\nA bunch of below warning are reported in the python3 test of insights-plugins:\r\n\r\n~~~ \r\n\r\n /Users/liuxc/work/insights/insights-core/insights/parsers/qemu_xml.py:149: DeprecationWarning: This method will be removed in future versions.  Use '\r\nlist(elem)' or iteration over elem instead.\r\n  /Users/liuxc/work/insights/insights-core/insights/parsers/qemu_xml.py:149: DeprecationWarning: This method will be removed in future versions.  Use '\r\nlist(elem)' or iteration over elem instead.\r\n~~~\n", "before_files": [{"content": "\"\"\"\nQemuXML file ``/etc/libvirt/qemu/*.xml``\n----------------------------------------\n\"\"\"\nfrom .. import XMLParser, parser\nfrom insights.specs import Specs\n\n\n@parser(Specs.qemu_xml)\nclass QemuXML(XMLParser):\n    \"\"\"This class parses xml files under ``/etc/libvirt/qemu/`` using\n    ``XMLParser`` base parser.\n\n    Sample file::\n\n        <!--\n        WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE\n        OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:\n          virsh edit 05-s00c06h0\n        or other application using the libvirt API.\n        -->\n\n        <domain type='kvm'>\n          <name>05-s00c06h0</name>\n          <uuid>02cf0bba-2bd6-11e7-8337-e4115b9a50d0</uuid>\n          <memory unit='KiB'>12582912</memory>\n          <currentMemory unit='KiB'>12582912</currentMemory>\n          <vcpu placement='static'>4</vcpu>\n          <cputune>\n            <vcpupin vcpu='0' cpuset='1'/>\n            <vcpupin vcpu='1' cpuset='2'/>\n            <vcpupin vcpu='2' cpuset='3'/>\n            <vcpupin vcpu='3' cpuset='4'/>\n            <emulatorpin cpuset='1-4'/>\n          </cputune>\n          <numatune>\n            <memory mode='strict' nodeset='0-1'/>\n            <memnode cellid='0' mode='strict' nodeset='0'/>\n            <memnode cellid='1' mode='strict' nodeset='1'/>\n          </numatune>\n          <os>\n            <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>\n            <boot dev='hd'/>\n            <boot dev='network'/>\n            <bootmenu enable='yes' timeout='1000'/>\n            <bios useserial='yes' rebootTimeout='0'/>\n          </os>\n          <features>\n            <acpi/>\n            <apic/>\n            <pae/>\n          </features>\n          <cpu>\n            <numa>\n              <cell id='0' cpus='0-1' memory='6291456' unit='KiB'/>\n              <cell id='1' cpus='2-3' memory='6291456' unit='KiB'/>\n            </numa>\n          </cpu>\n          <clock offset='utc'/>\n          <on_poweroff>destroy</on_poweroff>\n          <on_reboot>restart</on_reboot>\n          <on_crash>restart</on_crash>\n          <devices>\n            <emulator>/usr/libexec/qemu-kvm</emulator>\n            <disk type='file' device='disk'>\n              <driver name='qemu' type='raw' cache='none' io='threads'/>\n              <source file='/var/lib/libvirt/images/05-s00c06h0_1.img'/>\n              <target dev='vda' bus='virtio'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>\n            </disk>\n            <controller type='usb' index='0'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>\n            </controller>\n            <controller type='pci' index='0' model='pci-root'/>\n            <controller type='virtio-serial' index='0'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>\n            </controller>\n            <interface type='hostdev' managed='yes'>\n              <mac address='b2:59:73:15:00:00'/>\n              <source>\n                <address type='pci' domain='0x0000' bus='0x04' slot='0x10' function='0x0'/>\n              </source>\n              <rom bar='on' file='/opt/vcp/share/ipxe/808610ed.rom'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>\n            </interface>\n            <interface type='hostdev' managed='yes'>\n              <mac address='b2:59:73:15:00:01'/>\n              <source>\n                <address type='pci' domain='0x0000' bus='0x04' slot='0x10' function='0x1'/>\n              </source>\n              <rom bar='on' file='/opt/vcp/share/ipxe/808610ed.rom'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>\n            </interface>\n            <serial type='pty'>\n              <target port='0'/>\n            </serial>\n            <console type='pty'>\n              <target type='serial' port='0'/>\n            </console>\n            <channel type='pipe'>\n              <source path='/var/lib/libvirt/qemu/channels/FROM-05-s00c06h0'/>\n              <target type='virtio' name='virtio2host'/>\n              <address type='virtio-serial' controller='0' bus='0' port='1'/>\n            </channel>\n            <channel type='pipe'>\n              <source path='/var/lib/libvirt/qemu/channels/HGC-05-s00c06h0'/>\n              <target type='virtio' name='virtio_host_guest_check'/>\n              <address type='virtio-serial' controller='0' bus='0' port='2'/>\n            </channel>\n            <input type='mouse' bus='ps2'/>\n            <input type='keyboard' bus='ps2'/>\n            <graphics type='vnc' port='-1' autoport='yes'>\n              <listen type='address'/>\n            </graphics>\n            <video>\n              <model type='cirrus' vram='16384' heads='1' primary='yes'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>\n            </video>\n            <watchdog model='i6300esb' action='reset'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>\n            </watchdog>\n            <memballoon model='virtio'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>\n            </memballoon>\n          </devices>\n        </domain>\n\n    Examples:\n        >>> xml_numa.file_name == 'vm.xml'\n        True\n        >>> xml_numa.vm_name == '05-s00c06h0'\n        True\n        >>> memnode = xml_numa.get_elements('./numatune/memnode', None)\n        >>> len(memnode[0].items()) == 3\n        True\n        >>> len(memnode[1].items()) == 3\n        True\n        >>> memnode[0].get('cellid') == '0'\n        True\n        >>> memnode[1].get('mode') == 'strict'\n        True\n    \"\"\"\n    def parse_dom(self):\n        if self.dom is None:\n            return\n        else:\n            domain = {}\n            for child in self.dom:\n                if not child.getchildren():\n                    domain[child.tag] = child.text\n                else:\n                    domain[child.tag] = [c.items() for c in child.getchildren()]\n\n            return domain\n\n    @property\n    def vm_name(self):\n        return self.data.get('name', None)\n", "path": "insights/parsers/qemu_xml.py"}], "after_files": [{"content": "\"\"\"\nQemuXML file ``/etc/libvirt/qemu/*.xml``\n----------------------------------------\n\"\"\"\nfrom .. import XMLParser, parser\nfrom insights.specs import Specs\n\n\n@parser(Specs.qemu_xml)\nclass QemuXML(XMLParser):\n    \"\"\"This class parses xml files under ``/etc/libvirt/qemu/`` using\n    ``XMLParser`` base parser.\n\n    Sample file::\n\n        <!--\n        WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE\n        OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:\n          virsh edit 05-s00c06h0\n        or other application using the libvirt API.\n        -->\n\n        <domain type='kvm'>\n          <name>05-s00c06h0</name>\n          <uuid>02cf0bba-2bd6-11e7-8337-e4115b9a50d0</uuid>\n          <memory unit='KiB'>12582912</memory>\n          <currentMemory unit='KiB'>12582912</currentMemory>\n          <vcpu placement='static'>4</vcpu>\n          <cputune>\n            <vcpupin vcpu='0' cpuset='1'/>\n            <vcpupin vcpu='1' cpuset='2'/>\n            <vcpupin vcpu='2' cpuset='3'/>\n            <vcpupin vcpu='3' cpuset='4'/>\n            <emulatorpin cpuset='1-4'/>\n          </cputune>\n          <numatune>\n            <memory mode='strict' nodeset='0-1'/>\n            <memnode cellid='0' mode='strict' nodeset='0'/>\n            <memnode cellid='1' mode='strict' nodeset='1'/>\n          </numatune>\n          <os>\n            <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>\n            <boot dev='hd'/>\n            <boot dev='network'/>\n            <bootmenu enable='yes' timeout='1000'/>\n            <bios useserial='yes' rebootTimeout='0'/>\n          </os>\n          <features>\n            <acpi/>\n            <apic/>\n            <pae/>\n          </features>\n          <cpu>\n            <numa>\n              <cell id='0' cpus='0-1' memory='6291456' unit='KiB'/>\n              <cell id='1' cpus='2-3' memory='6291456' unit='KiB'/>\n            </numa>\n          </cpu>\n          <clock offset='utc'/>\n          <on_poweroff>destroy</on_poweroff>\n          <on_reboot>restart</on_reboot>\n          <on_crash>restart</on_crash>\n          <devices>\n            <emulator>/usr/libexec/qemu-kvm</emulator>\n            <disk type='file' device='disk'>\n              <driver name='qemu' type='raw' cache='none' io='threads'/>\n              <source file='/var/lib/libvirt/images/05-s00c06h0_1.img'/>\n              <target dev='vda' bus='virtio'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>\n            </disk>\n            <controller type='usb' index='0'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>\n            </controller>\n            <controller type='pci' index='0' model='pci-root'/>\n            <controller type='virtio-serial' index='0'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>\n            </controller>\n            <interface type='hostdev' managed='yes'>\n              <mac address='b2:59:73:15:00:00'/>\n              <source>\n                <address type='pci' domain='0x0000' bus='0x04' slot='0x10' function='0x0'/>\n              </source>\n              <rom bar='on' file='/opt/vcp/share/ipxe/808610ed.rom'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>\n            </interface>\n            <interface type='hostdev' managed='yes'>\n              <mac address='b2:59:73:15:00:01'/>\n              <source>\n                <address type='pci' domain='0x0000' bus='0x04' slot='0x10' function='0x1'/>\n              </source>\n              <rom bar='on' file='/opt/vcp/share/ipxe/808610ed.rom'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>\n            </interface>\n            <serial type='pty'>\n              <target port='0'/>\n            </serial>\n            <console type='pty'>\n              <target type='serial' port='0'/>\n            </console>\n            <channel type='pipe'>\n              <source path='/var/lib/libvirt/qemu/channels/FROM-05-s00c06h0'/>\n              <target type='virtio' name='virtio2host'/>\n              <address type='virtio-serial' controller='0' bus='0' port='1'/>\n            </channel>\n            <channel type='pipe'>\n              <source path='/var/lib/libvirt/qemu/channels/HGC-05-s00c06h0'/>\n              <target type='virtio' name='virtio_host_guest_check'/>\n              <address type='virtio-serial' controller='0' bus='0' port='2'/>\n            </channel>\n            <input type='mouse' bus='ps2'/>\n            <input type='keyboard' bus='ps2'/>\n            <graphics type='vnc' port='-1' autoport='yes'>\n              <listen type='address'/>\n            </graphics>\n            <video>\n              <model type='cirrus' vram='16384' heads='1' primary='yes'/>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>\n            </video>\n            <watchdog model='i6300esb' action='reset'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>\n            </watchdog>\n            <memballoon model='virtio'>\n              <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>\n            </memballoon>\n          </devices>\n        </domain>\n\n    Examples:\n        >>> xml_numa.file_name == 'vm.xml'\n        True\n        >>> xml_numa.vm_name == '05-s00c06h0'\n        True\n        >>> memnode = xml_numa.get_elements('./numatune/memnode', None)\n        >>> len(memnode[0].items()) == 3\n        True\n        >>> len(memnode[1].items()) == 3\n        True\n        >>> memnode[0].get('cellid') == '0'\n        True\n        >>> memnode[1].get('mode') == 'strict'\n        True\n    \"\"\"\n    def parse_dom(self):\n        if self.dom is None:\n            return\n        else:\n            domain = {}\n            for child in self.dom:\n                if len(child) == 0:\n                    domain[child.tag] = child.text\n                else:\n                    domain[child.tag] = [c.items() for c in child]\n\n            return domain\n\n    @property\n    def vm_name(self):\n        return self.data.get('name', None)\n", "path": "insights/parsers/qemu_xml.py"}]}