Write specific rows from pandas dataframe to csv file

[volcano63]

Yes I agree UUID will solve my problem, but my output should be like below here how can we avoid Iteration?

Territory   NoOfCustomers    UniqueId 
D00060       10              0001ABSDFG79
D00060       10              0001ABKJKJ90
D00060       10              0001ABVVVV92
D00060       10              0001ABJHJJ93
D00060       10              0001ABCCVV95

You don't avoid iteration - you don't write it explicitly. pandas does it for you under the hood.

uuid.uuid<n>() yields one value on each call - yet you can assign its output to a DataFrame column. You can use any function on the right side of the assignment - or you may have a list/tuple, in the latter case the only limitation being that the length of the list macthes number of rows in your DataFrame