関連ワード:  return position of substring in string python    find index of substring in string python    find location of substring in string python    find all position of substring in string python    find all index of substring in string python    find last index of substring in string python    find index of multiple substring in string python    find index of substring in list of strings python    find start and end index of substring in string python  
結果 : return position of substring in string python