Python offers lists as a useful tool for storing and iterating over sequences of data. Lists can store multiple values unlike variables which store single values. Lists have attributes like name, values, length calculated by len(list), and indexes which start from 0 to len(list)-1. Functions in Python perform specific tasks and help organize programs into modular chunks. Variables inside functions have local scope and lifetime only during function execution, being destroyed when the function returns.

1. Python Programming

2. Lists in Python
 Python offers a range of compound datatypes
often referred to as sequences.
 Lists are a useful tool for preserving a sequence
of data and further iterating over it.
 Note:Like variables store 1 value, lists can be
used to store multiple values.

4. Lits has 4 atrributes
 Name of the list
 Values inside the list
 Length of list
 Calculated by len(list)
 Indexes of list
 Indexes of list start with 0 to (len(list) – 1)

10. Add elements to list

12. Strings are stored as lists in python

15. Functions in python
 In Python, function is a group of related
statements that perform a specific task.
 Functions help break our program into smaller
and modular chunks.
 As our program grows larger and larger,
functions make it more organized and
manageable.

16. Syntax of function

18. Return statement

19. Scope and Lifetime of variables
 Scope of a variable is the portion of a program
where the variable is recognized. Parameters
and variables defined inside a function is not
visible from outside. Hence, they have a local
scope.
 Lifetime of a variable is the period throughout
which the variable exits in the memory. The
lifetime of variables inside a function is as long
as the function executes.
 They are destroyed once we return from the
function. Hence, a function does not remember

21. This work is licensed under a Creative Commons
Attribution-ShareAlike 3.0 Unported License.
It makes use of the works of Mateus Machado Luna.