Traceback (most recent call last):
  File "create_nodes.py", line 17, in <module>
    node_name = data[i].strip()
AttributeError: 'list' object has no attribute 'strip'

I didn't notice your response to this nearly 2 years ago. I don't know if this table structure is still useful, but it is what is exported from the Dude device list.

I was revisiting this thread as I was trying to bulk import older devices we weren't previously monitoring into our NetXMS deployment. I figured that I could re-use this script, but I am running into errors now when I try to use it.

SyntaxError: no viable alternative at input 'admin'

Is it only the list of nodes, or there is some other useful data from the Dude that can be exported (e.g. templates with OIDs for SNMP polling, etc...)

To execute the script:
nxshell -u admin -P password create_nodes.py

import csv

print("=========================================================================================================")

with open('nodes.csv') as csv_file:
    reader = csv.reader(csv_file, delimiter=',')
    data = [row for row in reader]

Infrastructure = session.findObjectByName("Infrastructure services")
if Infrastructure is None:
    print("Infrastructure services not found")
    quit()

flags = NXCObjectCreationData.CF_DISABLE_ETHERNET_IP

for i in range(0, len(data)):
    node_name = data[i][0].strip()
    node_address = data[i][1].strip()
    node_container = data[i][2].strip()
    Container = session.findObjectByName(node_container)
    if Container is None:
        cd = NXCObjectCreationData(objects.GenericObject.OBJECT_CONTAINER, node_container, Infrastructure.objectId);
        node_container_id = session.createObject(cd)
        print('Container "{}" created, id={}'.format(node_container, node_container_id))
    else:
        print('Container "{}" already exists'.format(node_container))
        node_container_id = Container.objectId
    Node = session.findObjectByName(node_name)
    if Node is None:
        cd = NXCObjectCreationData(objects.GenericObject.OBJECT_NODE, node_name, node_container_id);
        cd.setCreationFlags(flags);
        cd.setPrimaryName(node_address)
        nodeId = session.createObject(cd)
        print('Node "%s" created, id=%d' % (node_name, nodeId))
    else:
        print('Node "%s" already exists' % (node_name))