>>> and = 4
SyntaxError: invalid syntax
>>> 4/0
Traceback (most recent call last):
  File "<pyshell#150>", line 1, in <module>
    4/0
ZeroDivisionError: division by zero
>>> int('3.4')
Traceback (most recent call last):
  File "<pyshell#151>", line 1, in <module>
    int('3.4')
ValueError: invalid literal for int() with base 10: '3.4'
>>> float('abc')
Traceback (most recent call last):
  File "<pyshell#152>", line 1, in <module>
    float('abc')
ValueError: could not convert string to float: 'abc'
>>> 4 = x
SyntaxError: can't assign to literal
>>> 

