How to use del statement to remove a variable

Deleting with del

del statement not only removes a reference to an object, it also removes the name itself:

x = 1 
del x 
x 

The code above generates the following result.

x = ["Hello", "world"] 
y = x #   ww w. jav  a 2 s .  c  o  m
y[1] = "Python" 
print x 
del x 
print y 

The code above generates the following result.

x and y referred to the same list, but deleting x didn't affect y at all.

You delete the name, not the list itself.