# Buggy code
def get_existing(module, args):
    existing = {}
    netcfg = get_config(module)

    custom = ["assoc_vrf", "peer_list"]

    interface_exist = check_interface(module, netcfg)
    if interface_exist:
        parents = ["interface {0}".format(interface_exist)]
        temp_config = netcfg.get_section(parents)

        if "member vni {0} associate-vrf".format(module.params["vni"]) in temp_config:
            parents.append("member vni {0} associate-vrf".format(module.params["vni"]))
            config = netcfg.get_section(parents)
        elif "member vni {0}".format(module.params["vni"]) in temp_config:
            parents.append("member vni {0}".format(module.params["vni"]))
            config = netcfg.get_section(parents)
        else:
            config = {}

        if config:
            for arg in args:
                if arg not in ["interface", "vni"]:
                    if arg in custom:
                        existing[arg] = get_custom_value(arg, config, module)
                    else:
                        existing[arg] = get_value(arg, config, module)
            existing["interface"] = interface_exist
            existing["vni"] = module.params["vni"]

    return existing, interface_exist


# Traceback (AttributeError)
ok: [s-srv1leaf2-2] => {
"purge_vnis": [
9999
]
}
An exception occurred during task execution. The full traceback is:
Traceback (most recent call last):
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 589, in <module>
main()
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 533, in main
existing, interface_exist = invoke('get_existing', module, args)
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 316, in invoke
return func(*args, **kwargs)
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 377, in get_existing
temp_config = netcfg.get_section(parents)
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 192, in get_section
section = self.get_section_objects(path)
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 203, in get_section_objects
return self.expand_section(obj)
File "/tmp/ansible_yZvBEZ/ansible_module_nxos_vxlan_vtep_vni.py", line 175, in expand_section
if child in S:
File "/tmp/ansible_yZvBEZ/ansible_modlib.zip/ansible/module_utils/netcfg.py", line 47, in __eq__
AttributeError: 'str' object has no attribute 'line'

failed: [s-srv1leaf2-2] (item=9999) => {
"failed": true,
"invocation": {
"module_name": "nxos_vxlan_vtep_vni"
},
"item": 9999,

# Fixed code
def get_existing(module, args):
    existing = {}
    netcfg = CustomNetworkConfig(indent=2, contents=get_config(module))

    custom = ["assoc_vrf", "peer_list"]

    interface_exist = check_interface(module, netcfg)
    if interface_exist:
        parents = ["interface {0}".format(interface_exist)]
        temp_config = netcfg.get_section(parents)

        if "member vni {0} associate-vrf".format(module.params["vni"]) in temp_config:
            parents.append("member vni {0} associate-vrf".format(module.params["vni"]))
            config = netcfg.get_section(parents)
        elif "member vni {0}".format(module.params["vni"]) in temp_config:
            parents.append("member vni {0}".format(module.params["vni"]))
            config = netcfg.get_section(parents)
        else:
            config = {}

        if config:
            for arg in args:
                if arg not in ["interface", "vni"]:
                    if arg in custom:
                        existing[arg] = get_custom_value(arg, config, module)
                    else:
                        existing[arg] = get_value(arg, config, module)
            existing["interface"] = interface_exist
            existing["vni"] = module.params["vni"]

    return existing, interface_exist