I found an interesting piece of code in python:
def x(cond):
if cond:
pass
print('Still running!')
x(True)
I would expect this not to print anything, but it prints Still running!
. What is happening here?
As per Python docs:
pass
is a null operation — when it is executed, nothing happens.
Source - https://docs.python.org/3/reference/simple_stmts.html#pass
As such, pass
does not do anything and all statements after pass
will still be executed.
Another way of thinking about this is that pass
is equivalent to any dummy statement:
def x(cond):
if cond:
"dummy statement"
print('Still running!')