Question

List needs to be converted to a string and perform a string operations,

Is there a effective way to convert both the operations into 1,

lista = ['col-1,','col-2,','col-3,']

stra = ' '.join(lista)

stra = stra.rstrip(',')

Answer 1

Since your join returns a string.. So, instead of storing it, you can chain one more method call…

stra = ' '.join(Lista).rstrip(',')

Or, better you can do this: –

stra = ' '.join(s.rstrip(',') for s in lista)

This will not print comma(,) in between your list items..