how to join words in python code example

Example 1: python join list to string

list = ['Add', 'Grepper', 'Answer']
Inline
> joined = " ".join(list)
> Add Grepper Answer
Variable
> seperator = ", "
> joined = seperator.join(list)
> Add, Grepper, Answer

Example 2: what is join use for in python

>>> sentence = ['this','is','a','sentence']
>>> '-'.join(sentence)
'this-is-a-sentence'