How to use the pass statement?

Question

I am currently learning Python and I have arrived at the segment about the pass articulation. The guide I'm utilizing characterizes it similar to a Null explanation that is normally utilized as a placeholder. 

I actually don't completely comprehend what that implies, however. Would someone be able to show me a basic/essential circumstance where the pass proclamation would be utilized and why it is required?

Answer 1

Let's say, you are creating a new class with some other methods which you don't want to implement, yet

class MyClass(object):

    def meth_a(self):

        pass

    def meth_b(self):

        print "I'm meth_b"

Assume you are planning another class with certain strategies that you would prefer not to actualize, yet. 

class MyClass(object):

    def meth_a(self):

        pass

    def meth_b(self):

        print "I'm meth_b"

If you somehow managed to leave out the pass, the code wouldn't run. 

You would then get an: 

IndentationError: expected an indented block

To sum up, the pass explanation does nothing specific, however it can go about as a placeholder, as shown here.

Interested to learn python? Join python course to gain more knowledge