Could someone please break this down for me??

Answer 1

Break down what, exactly? How to handle variables in Python or..?

Answer 2

No. Actually, del removes only the indicated variable. All others stay intact.

a = 0
print(a)

The above will output '0'.

a = 0
del a
print(a)

The above will raise a NameError, as there will be no 'a' variable defined when you del it.

Answer 3

is it that when you delete a variable,all the variables above are assumed and only the variables below the del are considered?