Removing Values from Lists with del Statements in python.

The del statement will delete values at an index in a list.All of the values in the list after the deleted value will be moved up one index. For example,enter the following into the interactive shell:

>>> spam = ['cat', 'bat', 'rat', 'elephant']
>>> del spam[2]
>>> spam
['cat', 'bat', 'elephant']
>>> del spam[2]
>>> spam
['cat', 'bat']

The del statement can also be used on a simple variable to delete it, as if it were an “unassignment” statement. If you try to use the variable after deleting it, you will get a NameError error because the variable no longer exists.
In practice, you almost never need to delete simplevariables. The del statement is mostly used to delete values from list.