This presentation consists of python built in data structures and mainly concentrating on tuples and lists and a little bit of dictionaries and their operations and functions

1. Python data structures
A QUICK RECAP ON INBUILT DATA STRUCTURES
PRESENTED BY:
S.VEDA GAYATHRI
B.TECH (2nd)
Electronics and Instrumentation
engineering
NIT SILCHAR

2. A QUICK GLANCE OVER:
• Data Structures
• Python data structures
• Lists
• Tuples
• Sets
• Dictionaries

3. Data structure
 Data structure is a way to store and organise the data so that it can be
accessed effectively.
 Eg.Dictionary
Why do we need them?
What are the different types of data structures we have?

4. Data
structures
in python
Built-in
Lists
Tuples
Sets
Dictionaries
User-
defined
Linked lists
Stacks
Queues
Tree
Graph

5. LISTS
• Lists are the group of items of different types.
• Lists have the following properties such as:
Mutable
Linear data structure
Mixed type elements
Variable length
Zero based indexing
• Nested Lists can also be created.
• Syntax: Elements represented in square brackets.
• Eg. List=[1,2,3,4]

6. List operations and
Functions
pop()
Append()
Remove()
Index()
Count()
Sort()
Sorted()
Replace
Insert
Sort
Delete
Append
Reverse

7. Tuples
• Tuples are also the group of items of different types.
• The main difference between tuples and lists is that tuples are
immutable.
• Remaining characteristics of tuples and lists are almost same .
• Syntax: Elements represented in paranthesis ().
• Eg.Tuple=(1,2,3,4)

8. Dictionaries
• Dictionary is defined using key ,value pairs enclosed in curly
braces.
• Eg: Dict={key1:’value1’, key2=‘value2’}
• Dictionaries are associated data structures. Dictionaries are
mutable.
• Keys are immutable where as values are mutable.
• Keys in dictionaries should be unique
• Dictionaries are unordered.
• Accesing of elements is done through keys not indexes.

9. Ways of creating dictionaries
Using curly brackets syntax
• With curly braces and key, index values.Dictionary={ key1:1,key2:2}
Creating empty dictionary and assign values
Using dict keyword
Using two lists of same length

10. Operations on dictionaries
keys()
values()
Get()
Del
len
Replace
Insert
Delete
Append

11. THANK YOU!!!
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