関連ワード:  python list to 2d array    python list to multidimensional array    python convert list to 2d array    python append list to 2d array    python list to 2d numpy array    python 1d list to 2d array    python list of tuples to 2d array    python list comprehension 2d array    python list sort 2d array    python list comprehension multidimensional array