Clear variable in python

Question

Is there a way to clear the value of a variable in python?

For example if I was implementing a binary tree:

Class Node:
    self.left = somenode1
            


        

Answer 1

I used a few options mentioned above :

del self.left

or setting value to None using

self.left = None

It's important to know the differences and put a few exception handlers in place when you use set the value to None. If you're printing the value of the conditional statements using a template, say,

print("The value of the variable is {}".format(self.left))

you might see the value of the variable printing "The value of the variable is None". Thus, you'd have to put a few exception handlers there :

if self.left:
    #Then only print stuff

The above command will only print values if self.left is not None