関連ワード:  how to swap two strings in python    how to swap two strings in python without using third variable    how to swap two characters in a string in python    how to swap two elements of a string in python    how to swap first two characters of string in python    how to replace two strings at a time in python    how to replace two words in a string in python    how to replace two letters in a string in python    swap two strings in python using function    how to swap two letters in a string python