input: Write a function to calculate the square root of a user-defined positive number. If the number is not positive, return an error message.
  assert calculate_square_root(100) == 10.0
  assert calculate_square_root(25) == 5.0
  assert calculate_square_root(0) == "Error: Number should be positive"
  assert calculate_square_root(-16) == "Error: Number should be positive"
output: def calculate_square_root(number):
      if number <= 0:
          return "Error: Number should be positive"
      return number ** 0.5