File: class/Workbook/Exercises/Lab2/ex7.txt
>>> "x" + 1 Traceback (innermost last): File "<stdin>", line 1, in ? TypeError: illegal argument type for built-in operation >>> >>> {} + {} Traceback (innermost last): File "<stdin>", line 1, in ? TypeError: bad operand type(s) for + >>> >>> [].append(9) >>> "".append('s') Traceback (innermost last): File "<stdin>", line 1, in ? AttributeError: attribute-less object >>> >>> {}.keys() [] >>> [].keys() Traceback (innermost last): File "<stdin>", line 1, in ? AttributeError: keys >>> >>> [][:] [] >>> ""[:] ''