What is Python๐
๐Python is a language that's easy for both humans and computers to understand. It's like giving instructions to a computer to make it do things. You can use Python to tell a computer what to do, step by step, and it will follow your instructions.๐ค
People like Python because it's readable and has a clear syntax, which means the way you write it is straightforward. It's like writing a recipe for a computer to cook up something, but instead of food, you're making the computer perform specific tasks. ๐
Python is versatile. You can use it for lots of things - from simple tasks like automating repetitive jobs to complex stuff like building websites, analyzing data, or even creating artificial intelligence.๐๐
History๐
๐Python was created by Guido van Rossum in the late 1980s. The first official version, Python 1.0, was released in 1994. Python 2.0 came out in 2000, and Python 3.0, a major overhaul, was released in 2008. Python 2 was officially discontinued in 2020. Python's simplicity, readability, and versatility have contributed to its widespread adoption across various domains.
Data Types
Numeric Types:
int: Integer type (e.g., 5, -10).
Example: integer_number = 5
float: Floating-point type (e.g., 3.14, -0.5).
Example: float_number = 3.14
Lists:
Ordered, mutable (modifiable), and can contain elements of different data types.
Example: my_list = [1, 2, 3, 'python']
Tuples:
Ordered and immutable (unchangeable) sequences.
Example: my_tuple = (1, 2, 'tuple')
Sets:
Unordered and mutable collections of unique elements.
Example: my_set = {1, 2, 3}
Dictionaries:
Unordered collection of key-value pairs.
Example: my_dict = {'key1': 'value1', 'key2': 2, 'key3': [1, 2, 3]}
Strings:
Immutable sequences of characters.
Example: my_string = "Hello, Python!"
Boolean Type:
bool: Boolean type representing True or False.
Example: is_true = True
is_false = False
Data Structure๐๏ธ
Data Structures are like specialized containers for organizing and managing information. Think of them as different ways to store and manipulate data.๐๏ธ
Lists: Lists are ordered collections that allow you to store multiple items in a particular order. They provide flexibility for handling different types of data.๐
Tuples: Similar to lists, tuples are ordered sequences, but they are immutable, meaning their elements cannot be changed after creation. They are useful when you want to ensure data integrity.๐ก๏ธ
Sets: Sets are unordered collections that only contain unique elements. They are handy for tasks where distinct values matter more than order.๐งฎ
Dictionaries: Dictionaries are key-value pairs, providing a way to associate data with specific labels (keys). They are effective for quick lookups and data retrieval.๐
Strings: Strings are sequences of characters, and they are fundamental for handling textual information in Python programs.๐
Difference between Data Types๐ข and Data Structures๐๏ธ
Data Types:
Definition: Data types in Python refer to the nature or category of data that a particular variable can hold.๐
Examples: Integers (int), floats (float), strings (str), booleans (bool), and complex numbers (complex) are examples of data types in Python.๐ข๐ค
Purpose: Data types define the kind of values a variable can store and the operations that can be performed on those values.๐ฏ
Data Structures:
Definition: Data structures are specific arrangements of data that allow for efficient storage, retrieval, and manipulation of information.๐๏ธ
Examples: Lists (list), tuples (tuple), sets (set), dictionaries (dict), and arrays are examples of data structures in Python.๐
Purpose: Data structures provide organized ways to store and manage data. They determine how data is stored, accessed, and modified in a program.๐
Difference between List๐, Tuple๐ and set๐ต
1. Mutability:
List: Mutable, meaning you can modify its elements (add, remove, or change) after creation.๐
Tuple: Immutable, once created, you cannot modify its elements.๐
Set: Mutable, but only in terms of adding or removing elements. The elements themselves cannot be modified.๐๐ซ
2. Syntax:
List: Defined using square brackets [].๐
Tuple: Defined using parentheses ().๐
Set: Defined using curly braces {}.๐
3. Order:
List: Ordered, maintains the order of elements based on their index.๐
Tuple: Ordered, maintains the order of elements.๐
Set: Unordered, does not guarantee the order of elements.๐ฆ
4. Duplicates:
List: Allows duplicates.๐
Tuple: Allows duplicates.๐
Set: Does not allow duplicates. If you try to add an element that already exists, it won't raise an error, but the set won't change.๐ท
5. Use Cases:
List: Use when you need a collection with the ability to modify elements, and the order of elements matters.๐ ๏ธ๐
Tuple: Use when you want an immutable, ordered collection. Commonly used for fixed collections like coordinates or database records.๐๐
Set: Use when you need an unordered, mutable collection with unique elements. It's handy for tasks where distinct values are crucial.๐๐๐ซ
Tasks๐
Create below Dictionary and use Dictionary methods to print your favorite tool just by using the keys of the Dictionary.
Create a List of cloud service providers
Write a program to add Digital Ocean to the list of cloud_providers and sort the list in alphabetical order.
๐ Thank you for taking the time to explore this blog!๐ I hope you found the information both helpful and insightful.โจ
๐ Enjoy your learning journey, and don't hesitate to reach out if you have any feedback. ๐ค Happy exploring!