>>> a: 3
>>> type(a: 3)
  File "<stdin>", line 1
    type(a: 3)
          ^
SyntaxError: invalid syntax
>>> a: 3
>>> type(a)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'a' is not defined
>>> a
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'a' is not defined