Suppose you are designing a new class with some methods that you don’t want to implement, yet.
class MyClass(object): def meth_a(self): pass def meth_b(self): print "I'm meth_b"
If you were to leave out the
pass, the code wouldn’t run.
You would then get an:
IndentationError: expected an indented block
To summarize, the
pass statement does nothing particular, but it can act as a placeholder, as demonstrated here.