Python help

Q1:

Write a calculator program that accepts commands from command line. The program has the following function when executed:

python Calculator.py* 5 4 will print out 5*4=20

python Calculator.py+ 5 4 will print out 5+4=9

python Calculator.py- 5 4 will print out 5-4=1

python Calculator.py/ 5 4 will print out 5/4=1

python Calculator.py/ 5 0 will print out error: denominator cannot be 0.

Q2:

Given any 2-dimension matrix such as

m=[[2,3,10,10],[1,3, 2,4],[2,-1,5, -5]]

Write a function called sumcore(m) which will add all the numbers at the center of the matrix and return it. (center numbers are those that are NOT at first/lastrow/column.

e.g. print sumcore(m) will print out 5because center numbers are 3, 2. (3+2=5)

Your program should work for any 2-dimension matrix. Not just the above example.Hint: len(m) will give u no. of rows.

def sumcore(m):