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

    parents = ["vrf context {0}".format(module.params["vrf"])]
    parents.append(
        "address-family {0} {1}".format(module.params["afi"], module.params["safi"])
    )
    config = netcfg.get_section(parents)
    if config:
        splitted_config = config.splitlines()
        vrf_index = False
        for index in range(0, len(splitted_config) - 1):
            if "vrf" in splitted_config[index].strip():
                vrf_index = index
                break
        if vrf_index:
            config = "\n".join(splitted_config[0:vrf_index])

        for arg in args:
            if arg not in ["afi", "safi", "vrf"]:
                existing[arg] = get_value(arg, config, module)

        existing["afi"] = module.params["afi"]
        existing["safi"] = module.params["safi"]
        existing["vrf"] = module.params["vrf"]

    return existing


# 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))

    parents = ["vrf context {0}".format(module.params["vrf"])]
    parents.append(
        "address-family {0} {1}".format(module.params["afi"], module.params["safi"])
    )
    config = netcfg.get_section(parents)
    if config:
        splitted_config = config.splitlines()
        vrf_index = False
        for index in range(0, len(splitted_config) - 1):
            if "vrf" in splitted_config[index].strip():
                vrf_index = index
                break
        if vrf_index:
            config = "\n".join(splitted_config[0:vrf_index])

        for arg in args:
            if arg not in ["afi", "safi", "vrf"]:
                existing[arg] = get_value(arg, config, module)

        existing["afi"] = module.params["afi"]
        existing["safi"] = module.params["safi"]
        existing["vrf"] = module.params["vrf"]

    return existing