What is the function of del

Answer 1

hi Richard, del can be used to delete variables:
a = 17
print(a) # result 17
del a
print(a) # result error

But also elements of a list or a complete list can be deleted with del:

mylst = [1,2,3,4]
del mylst[3]
print(mylst) # result [1,2,3]
del mylst
print(mylst) # result error

Answer 2

The purpose of deleting variables or elements of lists and so on is to free up space in memory...it becomes important when you are handling a lot of data or big (numpy) arrays or something like this