[PYTHON] What do you like about how to convert an array (list) to a string?

> ['a','b','c'].join(',')
'a,b,c'

> ['a','b','c'].join(',')
=> "a,b,c"

>>> ",".join(['a','b','c'])
'a,b,c'

List<String> list = Arrays.asList("a","b","c");
String result = String.join(",", list);

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