python 2d array indices must be integers or slices and not tuples

Java newbies here as well, but let’s try translate together:

memArray = [[None], [None]]

is not a Python equivalence for

Object[][] memoryArray = new Object[256][17];


memArray = [[None for _ in range(17)] for _ in range(256)]


# Java
memoryArray[memoryRow][memoryCol] = " "+Integer.toString(MBR);

translate directly to:

memArray[memR][memC] = " " + str(MBR)

And lastly, while Numpy array might help with advanced indexing over Python’s list, if you are working with strings/objects, you wouldn’t see much improvement in computing efficiency.

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