Hello Pradyumna
If the variable csv_line is a string, then the output of that variable in the window on the right will be of the form “R1,IOS-XE,192.168.1.1”.
If the variable csv_line is a list, then the output of that variable in the window on the right will be of the form [‘R1’, ‘IOS-XE’, ‘192.168.1.1’].
Notice in the following screenshot, initially, the output of csv_line is with quotes, and separated by commas. After it is converted, it appears in square brackets, with each item of the list in single quotes, and separated by commas.
I hope this has been helpful!
Laz