Error expected an idented block

[Aviador22]

Resulta que cuando pongo este código:

>>> edad = 12
>>> if edad == 12:
... print ('Hola')
File "(stdin)", line 2
prin[B]t[/B]('Hola')
IdentationError: expected an indented block

Help :(

[bvdet]

Add at least one space character before the print statement. As entered, there is no indentation.

[Aviador22]

I've already added but nothing happens I still appearing the same:(

[bvdet]

Mouse over the image to see my Python command prompt example.