What is Python?
Python is a Open source, general purpose, high level, and object-oriented programming language.
It was created by Guido van Rossum .
Python consists of vast libraries and various frameworks like Django, Tensorflow, Flask, Pandas etc.
How to Install Python?
Windows Installation:
Visit the official Python website: python.org
Download the latest Python installer for Windows.
Run the installer and follow the on-screen instructions.
During installation, ensure to check the option to add Python to PATH.
Once installed, open Command Prompt and type python --version to verify the installation and check the Python version.
Ubuntu Installation:
Open Terminal .
Run the command: to update the package list
sudo apt-get update
Install Python 3 by running :
sudo apt-get install python3
After installation, verify Python version by typing
python3 --versionin the Terminal.
Now python is installed ,let's move into some fundamental concepts such as data types, data structures, and perform hands-on tasks to better understand Lists, Tuples, Sets, and Dictionaries in Python.
1. Data Types :
Data types are classifications of data items that represent the kind of value and operations that can be performed on them. Python provides several built-in data types :
Numeric: Integers, Floats, Complex numbers
Sequential: Strings, Lists, Tuples
Boolean
Set
Dictionary
2. Data Structures :
Data structures organize and store data in memory to enable efficient access and manipulation. Python offers various data structures :
Lists: Ordered collection, mutable
Tuple: Ordered collection, immutable
Dictionary: Key-value pairs, unordered
Set: Unordered collection of unique elements
Difference between List, Tuple, Set and Dictionary :
Lists :
Ordered collection
Mutable (Elements can be added, removed, or modified)
Syntax:
my_list = [1, 2, 3, 4]Items in a list do not need to be of the same type .
Tuple :
Ordered collection
Immutable (Cannot be modified after creation)
Syntax:
my_tuple = (1, 2, 3, 4)Tuple can also contain elements of various types.
Set :
Unordered collection of unique elements
Mutable (Elements can be added or removed)
Syntax:
my_set = {1, 2, 3, 4}
Dictionary :
It is unordered collection of data values, used to store data values like a map ,Dictionary holds the key:value pair
Key-value is provided in the dictionary to make it more optimized
Basic Hands-on Tasks :
1. Create Dictionary :
2. Create List of Cloud Service Providers :
Python's versatility in data handling makes it a powerful tool for various applications ranging from data analysis to web development.