Python Tutorial
Python tutorial is a widely used programming language which helps beginners and professionals to understand the basics of Python programming easily.
Python is a high-level, easy, interpreted, general-purpose, and dynamic programming language. It supports object-oriented programming approach. It is straight forward to learn, and its elegant syntax allows programmers to express concepts in fewer lines of code as compared to other languages such as C, C++, or Java.
It has excellent data-structure, which makes it a unique language for scripting and application development on most platforms.
Python is a platform-independent language, which means a Python program can run on any operating system like Windows, Macintosh, Linux, etc.
Python runs on an interpreted system, which means that code can be executed line by line.
Python is a dynamically typed, so we don’t need to declare the data type of variable such as x=20 assigns an integer value to an integer variable.
In Python, development and debugging is fast because there are no compilation steps included in Python development, and edit-test-debug cycle is also very fast.
A Brief History of Python
The implementation of Python was started in the late 1980s by Guido van Rossum as a member of the National Research Institute of Mathematics and Computer Science in Netherland. Its first version was released on February 20, 1991.
The Python concepts have taken from the ABC programming language. ABC is a general-purpose programming language, and the greatest achievement of ABC was to influence the design of Python.
ABC programming language is known as predecessor of the Python language. ABC was capable of Exception Handling and interfacing with Amoeba Operating System.
Fact about choosing a name: The inspiration for the title came from BBC’s popular TV Show – 'Monty Python's Flying Circus,' as Guido van Rossum was a big fan of the TV show. He wanted a short, unique and little bit mysterious name for his invention and hence he named it Python.
- In 1994, Python version 1.0 was released with new features like map, filter, and reduce.
- Python 2.0 was released on Oct 2000 with new features like list comprehension and garbage collection system.
- Python 3.0, also known as "Py3k" was released on December 3, 2018, with new features. For example, in Python 2.x, "print" is a statement. In 3.x "print()" is function.
Python 2.x:
print "Hello World."
Python 3.x:
print("Hello World.")
Usage of Python
Python is used by many programmers and used in various fields. Most of the time, it is used to perform any complicated task in a much easier way than other programming languages.
When Python is installed, it comes up with the many powerful libraries which made up of many functions.
There are many libraries available on the internet that makes it possible to do complicated tasks more straightforwardly.
These standard libraries make it a powerful programming language. Python is widely used in the following fields:
- Web development,
- Software development,
- Machine Learning,
- GUIs based applications,
- Network programming,
- Game development,
- Mathematics
- Artificial Intelligence
- Data Science
Why Python?
Here are some reasons why Python is the most popular language these days:
Python provides rich libraries:
Python provides vast standard libraries that include areas like machine learning, mathematics, web service tools, operating system interfaces, and protocols.
Python is Open Source language:
Python is freely available at its official site (www.python.org). Anyone can download Python from its official website
Easy to use:
Python is very easy to learn and easy to use. It is a user-friendly language. It uses a few lines to express the code as compared to other languages.
For example- Suppose you want to print “Hello world” in java, code will be
public class HelloWorld {
public static void main(String[] args){
// Prints "Hello, World" to the terminal window.
System.out.println("Hello World");
}
}
In Python, it can be done by using one statement.
print(“Hello World”)
The output will be the same in both codes, but in Python, it takes only one line.
Frameworks and Libraries
Python provides various frameworks for different development fields. There are some popular frameworks given below:
- Web development (Server-side): Django is the most popular web development framework of Python. Flask, Pyramid, CherryPy, and others are also used for development.
- GUIs based applications: Tk, PyGTK, PyQt, PyJs, etc
- Machine Learning: TensorFlow, PyTorch, Scikit-learn, Matplotlib, etc
- Mathematics: Numpy, Pandas, etc.
Object-Oriented Approach
Python supports object-oriented programming approach. In object-oriented programming, OOPs concepts are based on creating reusable code and solve programming problems by creating objects. These concepts are also known as DRY (Don’t Repeat Yourself).
In Python, OOPs concepts are given below:
- Classes
- Objects
- Inheritance
- Polymorphism
- Encapsulation
We will learn these concepts in Python OOPs tutorial.
Extensible
Python is extensible, which allows invoking C and C++ library, and you can combine JAVA as well as .NET components.
Portability
Python is a portable language. For example, we have Python program for windows, and we want to run this code on other platforms such as Mac, Unix, Linux, then we do not need to change the code, we can run it on any platform. In this tutorial, we have covered a brief introduction to Python. Python is a very popular language and nothing wrong to say that it is the next generation language
Python Tutorial
- Introduction
- Python Features
- Python Applications
- Python System requirements
- Python Installation
- Python Examples
- Python Basics
- Python Indentation
- Python Variables
- Python Data Types
- Python IDE
- Python Keywords
- Python Operators
- Python Comments
- Python Pass Statement
Python Conditional Statements
Python Loops
- Python for loop
- Python while loop
- Python Break Statement
- Python Continue Statement
- Python Goto Statement
Python Arrays
Python Strings
Python Built-in Data Structure
Python Functions
- Python Function
- Python min() function
- Python max() function
- Python User-define Functions
- Python Built-in Functions
- Python Recursion
- Anonymous/Lambda Function in Python
- apply() function in python
- Python lambda() Function
Python File Handling
- Python File Handling
- Python Read CSV
- Python Write CSV
- Python Read Excel
- Python Write Excel
- Python Read Text File
- Python Write Text File
- Read JSON File in Python
Python Exception Handling
Python OOPs Concept
- OOPs Concepts in Python
- Classes & Objects in Python
- Inheritance in Python
- Polymorphism in Python
- Python Encapsulation
- Python Constructor
- Python Super function
- Python Static Method
- Static Variables in Python
- Abstraction in Python
Python Iterators
Python Generators
Python Decorators
Python Functions and Methods
- Python Built-in Functions
- Python String Methods
- Python List Methods
- Python Dictionary Methods
- Python Tuple Methods
- Python Set Methods
Python Modules
- Python Modules
- Python Datetime Module
- Python Math Module
- Python Import Module
- Python Time Module
- Python Random Module
- Python Calendar Module
- CSV Module in Python
- Python Subprocess Module
Python MySQL
- Python MySQL
- Python MySQL Client
- Update Operation
- Delete Operation
- Database Connection
- Creating new Database using Python MySQL
- Creating Tables
- Performing Transactions
Python MongoDB
Python SQLite
Python Data Structure Implementation
Python Advance Topics
- Speech Recognition in Python
- Face Recognition in Python
- Python Linear regression
- Python Rest API
- Python Command Line Arguments
- Python JSON
- Python Subprocess
- Python Virtual Environment
- Type Casting in Python
- Python Collections
- Python Attributes
- Python Commands
- Python Data Visualization
- Python Debugger
- Python DefaultDict
- Python Enumerate
Python 2
Python 3
Python Exercises
- Python Exercises
How to
- How to Parse JSON in Python
- How to Pass a list as an Argument in Python
- How to Install Numpy in PyCharm
- How to set up a proxy using selenium in python
- How to create a login page in python
- How to make API calls in Python
- How to run Python code from the command prompt
- How to read data from com port in python
- How to Read html page in python
- How to Substring a String in Python
- How to Iterate through a Dictionary in Python
- How to convert integer to float in Python
- How to reverse a string in Python
- How to take input in Python
- How to install Python in Windows
- How to install Python in Ubuntu
- How to install PIP in Python
- How to call a function in Python
- How to download Python
- How to comment multiple lines in Python
- How to create a file in Python
- How to create a list in Python
- How to declare array in Python
- How to clear screen in Python
- How to convert string to list in Python
- How to take multiple inputs in Python
- How to write a program in Python
- How to compare two strings in Python
- How to create a dictionary in Python
- How to create an array in Python
- How to update Python
- How to compare two lists in Python
- How to concatenate two strings in Python
- How to print pattern in Python
- How to check data type in python
- How to slice a list in python
- How to implement classifiers in Python
- How To Print Colored Text in Python
- How to open a file in python
- How to Open a file in python with Path
- How to run a Python file in CMD
- How to change the names of Columns in Python
- How to Concat two Dataframes in Python
- How to Iterate a List in Python
- How to learn python Online
- How to Make an App with Python
- How to develop a game in python
- How to print in same line in python
- How to create a class in python
- How to find square root in python
- How to import numy in python
- How to import pandas in python
- How to uninstall python
- How to upgrade PIP in python
- How to append a string in python
- How to comment out a block of code in Python
- How to change a value of a tuple in Python
- How to append an Array in Python
- How to Configure Python Interpreter in Eclipse
- Parameter Passing in Python
- How to plot a Histogram in Python
- How to Import Files in Python
- How to Download all Modules in Python
- How to get Time in seconds in Python
- How to Practice Python Programming
- How to plot multiple linear regression in Python
- How to set font for Text in Python
Searching
Sorting
Programs
- Factorial Program in Python
- Prime Number Program in Python
- Fibonacci Series Program in Python
- Leap Year Program in Python
- Palindrome Program in Python
- Check Palindrome In Python
- Calculator Program in Python
- Armstrong Number Program in Python
- Python Program to add two numbers
- Anagram Program in Python
- Number Pattern Programs in Python
- Even Odd Program in Python
- GCD Program in Python
- Python Exit Program
- Python Program to check Leap Year
- Operator Overloading in Python
- Pointers in Python
- Python Not Equal Operator
- Raise Exception in Python
- Salary of Python Developers in India
- What is a Script in Python
Misc
- Introduction to Scratch programming
- SKLearn Clustering
- SKLearn Linear Module
- Standard Scaler in SKLearn
- Python Time Library
- SKLearn Model Selection
- Standard Scaler in SKLearn
- Accuracy_score Function in Sklearn
- Append key Value to Dictionary in Python
- Cross Entropy in Python
- Cursor in Python
- Data Class in Python
- How to Install Tweepy in Python
- Imread Python
- Program of Cumulative Sum in Python
- Python Program for Linear Search
- Python Program to Generate a Random String
- Read numpy array in Python
- Scrimba python
- Sklearn linear Model in Python
- Scraping data in python
- Accessing Key-value in Dictionary in Python
- Find Median of List in Python
- Linear Regression using Sklearn with Example
- Problem-solving with algorithm and data structures using Python
- Python 2.7 data structures
- Python Variable Scope with Local & Non-local Examples
- Arguments and parameters in Python
- Assertion error in python
- Programs for Printing Pyramid Patterns in Python
- _name_ in Python
- Amazon rekognition using python
- Anaconda python 3.7 download for windows 10 64-bit
- Android apps for coding in python
- Augmented reality in python
- Best app for python
- Difference between Perl and Python
- Not supported between instances of str and int in python
- Python comment symbol
- Python Complex Class
- Python IDE names
- Selection Sort Using Python
- Hypothesis Testing in Python
- Idle python download for Windows
- Insertion Sort using Python
- Merge Sort using Python
- Python - Binomial Distribution
- Python Logistic Regression with Sklearn & Scikit
- Python Random shuffle() method
- Python variance() function
- Python vs HTML
- Removing the First Character from the String in Python
- Adding item to a python dictionary
- Best books for NLP with Python
- Best Database for Python
- Count Number of Keys in Dictionary Python
- Cross Validation in Sklearn
- Drop() Function in Python
- EDA in Python
- Excel Automation with Python
- Python Program to Find the gcd of Two Numbers
- Python Web Development projects
- Adding a key-value pair to dictionary in Python
- Python Euclidean Distance
- Python Filter List
- Python Fit Transform
- Python e-book free download
- Python email utils
- Python range() Function
- Python random.seed() function
- What is the re.sub() function in Python
- Python PPTX
- Python Pickle
- Python Seaborn
- Python Coroutine
- Python EOL
- Python Infinity
- Python math.cos and math.acos function
- Python Project Ideas Based On Django
- Reverse a String in Python
- Reverse a Number in Python
- Python Word Tokenizer
- Python Trigonometric Functions
- Python try catch exception
- GUI Calculator in Python
- Implementing geometric shapes into the game in python
- Installing Packages in Python
- Python Try Except
- Python Sending Email
- Socket Programming in Python
- Python CGI Programming
- Python Data Structures
- Python abstract class
- Python Compiler
- Python K-Means Clustering
- NSE Tools In Python
- Operator Module In Python
- Palindrome In Python
- Permutations in Python
- Pillow Python introduction and setup
- Python Functionalities of Pillow Module
- Python Argmin
- Python whois
- Python JSON Schema
- Python lock
- Return Statement In Python
- Reverse a sentence In Python
- tell() function in Python
- Why learn Python?
- Write Dictionary to CSV in Python
- Write a String in Python
- Binary Search Visualization using Pygame in Python
- Latest Project Ideas using Python 2022
- Closest Pair of Points in Python
- ComboBox in Python
- Python vs R
- Best resources to learn Numpy and Pandas in python
- Check Letter in a String Python
- Python Console
- Python Control Statements
- Convert Float to Int in Python using Pandas
- Difference between python list and tuple
- Importing Numpy in Pycharm
- Python Key Error
- Python NewLine
- Python tokens and character set
- Python Strong Number
- any() Keyword in python
- Best Database in Python
- Check whether dir is empty or not in python
- Comments in the Python Programming Language
- Convert int to Float in Python using Pandas
- Decision Tree Classification in Python
- End Parameter in python
- __GETITEM__ and __SETITEM__ in Python
- Python Namespace
- Python GUI Programming
- List Assignment Index out of Range in Python
- List Iteration in Python
- List Index out of Range Python for Loop
- List Subtract in Python
- Python Empty Tuple
- Python Escape Characters
- Sentence to python vector
- Slicing of a String in Python
- Executing Shell Commands in Python
- Genetic Algorithm in python
- Get index of element in array in python
- Looping through Data Frame in Python
- Syntax of Map function in Python
- After Python What Should I Learn
- Python AIOHTTP
- Alexa Python
- Artificial intelligence mini projects ideas in python
- Artificial intelligence mini projects with source code in Python
- Find whether the given stringnumber is palindrome or not
- First Unique Character in a String Python
- Python Network Programming
- Python Interface
- Python Multithreading
- Python Interpreter
- Data Distribution in python
- Flutter with tensor flow in python
- Front end in python
- Iterate a Dictionary in Python
- Iterate a Dictionary in Python – Part 2
- Allocate a minimum number of pages in python
- Assertion Errors and Attribute Errors in Python
- Checking whether a String Contains a Set of Characters in python
- Python Control Flow Statements
- *Args and **Kwargs in Python
- Bar Plot in Python
- Conditional Expressions in Python
- Function annotations() in Python
- How to Write a Configuration file in Python
- Image to Text in python
- import() Function in Python
- Import py file in Python
- Multiple Linear Regression using Python
- Nested Tuple in Python
- Python String Negative Indexing
- Reading a File Line by Line in Python
- Python Comment Block
- Base Case in Recursive function python
- ER diagram of the Bank Management System in python
- Image to NumPy Arrays in Python
- NOT IN operator in Python
- One Liner If-Else Statements in Python
- Sklearn in Python
- Cube Root in Python
- Python Variables, Constants and Literals
- What Does the Percent Sign (%) Mean in Python
- Creating Web Application in python
- Notepad++ For Python
- PyPi TensorFlow
- Python | Read csv using pandas.read_csv()
- What is online python free IDE
- What is Python online compiler
- Run exec python from PHP
- What are the Purposes of Python
- What is Python compiler GDB
- Python coding platform
- Python Classification
- Python | a += b is not always a = a + b
- PyDev with Python IDE
- Character Set in Python
- Best Python AI Projects
- _dict_ in Python
- Python Ternary Operators
- Self in Python
- Python vs Java
- Python Modulo
- Python Packages
- Python Syntax
- Python Uses
- Python Bitwise Operators
- Python Identifiers
- Python Matrix Multiplication
- Python AND Operator
- Python Logical Operators
- Python Multiprocessing
- Python Unit Testing
- __init__ in Python
- Advantages of Python
- Is Python Case-sensitive when Dealing with Identifiers
- Python Boolean
- Python Call Function
- Python History
- Python Image Processing
- Python main() function
- Python Permutations and Combinations
- Difference between Input() and raw_input() functions in Python
- Conditional Statements in python
- Confusion Matrix Visualization Python
- Nested List in Python
- Python Algorithms
- Python Modules List
- Difference between Python 2 and Python 3
- Is Python Case Sensitive
- Method Overloading in Python
- Python Arithmetic Operators
- Assignment Operators in Python
- Is Python Object Oriented Programming language
- Python Division
- Python exit commands
- Continue And Pass Statements In Python
- Colors In Python
- Convert String Into Int In Python
- Convert String To Binary In Python
- Convert Uppercase To Lowercase In Python
- Convert XML To JSON In Python
- Converting Set To List In Python
- Covariance In Python
- CSV Module In Python
- Decision Tree In Python
- Difference Between Yield And Return In Python
- Dynamic Typing In Python
- BOTTLE Python Web Framework
- How to Install Scikit-Learn
- Introducing modern python computing in simple packages
- Python vs PHP
- Reason for Python So Popular
- Returning Multiple Values in Python
- Spotify API in Python
- Spyder (32-bit) - Free download
- Time. Sleep() in Python
- Traverse Dictionary in Python
- What is Ipython shell
- YOLO Python
- Nested for Loop in Python
- Data Structures and Algorithms Using Python | Part 1
- Data Structures and Algorithms using Python | Part 2
- ModuleNotFoundError No module named 'mysql' in Python
- N2 in Python
- XGBoost for Regression in Python
- Explain sklearn clustering in Python
- Data Drop in Python
- Falcon Python
- Flutter Python
- Google Python Class
- Excel to CSV in Python
- Google Chrome API in Python
- Gaussian elimination in python
- Matrix List Comprehension in Python
- Python List Size
- Python data science course
- StandardScaler in Sklearn
- Python Redis Example
- Python Program for Tower of Hanoi
- Python Printf Style Formating
- Python Percentage Sign
- Python Parse Text File
- Python Parallel Processing
- Python Online Compiler
- Python maketrans() function
- Python Loop through a Dictionary
- Python for Data Analysis
- Python for Loop Increment
- Python Kwargs Example
- Python Line Break
- What does base case mean in recursion
- What does the if __name__ == "__main__" do in Python
- What is Sleeping Time in Python
- Kite Python
- Length of Tuple in Python
- Python String Lowercase
- Python Struct
- Python Support
- Python String Variable
- Python System Command
- Python TCP Server
- Python Unit Test Cheat String
- Python Validator
- Unicode to String in Python
- An Introduction to Mocking in Python
- An Introduction to Subprocess in Python with Examples
- Anytree Python
- API Requests using Python
- App Config Python
- Check if the directory exists in Python
- Managing Multiple Python Versions With pyenv
- os.rename() method in Python
- os.stat() method in Python
- Python Ways to find nth occurrence of substring in a string
- Python Breakpoint
- Find Last Occurrence of Substring using Python
- Python Operators
- Python Selectors
- Python Slice from Last Occurrence of K
- Sentiment Analysis using NLTK
- String indices must be integers in Python
- Tensorflow Angular in Python
- AES CTR Python
- Crash Course on Python by Google
- Curdir Python
- Exrex Python
- FOO in Python
- Get Bounding Box Co-ordinates Python
- Hog Descriptor Opencv Python
- Important Difference between Python 2.x and Python 3.x with Example
- Io stringio Python
- iobase Python
- IPython Display
- Iterate through the list in Python
- Joint Plot in Python
- JWT Decode Python
- List Comprehension in Python
- List in Python
- Map Syntax in Python
- Python Marshmallow
- PyShark in Python
- Python Banner
- Python Logging Maxbytes
- Python Multiprocessing Processor
- Python Skyline
- Python Subprocess Call Example
- Python Sys Stdout
- Python Win32 Process
- Python's Qstandarditemmodel
- Struct Module in Python
- Sys Module in Python
- Tuple in Python
- Uint8 Python
- XXhash Python Examples
- XXhash Python
- Handling missing keys in Python dictionaries
- Python Num2words
- Python Os sep
- OSError in Python
- Periodogram in Python
- Pltpcolor in Python
- Poolmanager in Python
- Python pycountry
- Python pynmea2
- Difference between Package and Module in Python
- How to add 2 lists in Python
- How to assign values to variables in Python and other languages
- How to build an Auto Clicker using Python
- How to check if the dictionary is empty in Python
- How to check the version of the Python Interpreter
- How to convert Float to Int in Python
- How to Convert Int to String in Python
- How to Define a Function in Python
- How to Install Pandas in Python
- How to Plot Graphs Using Python
- How to Program in Python on Raspberry pi
- How to Reverse a number in Python
- How to Sort a String in Python
- What is Collaborative Filtering in ML, Python
- What is the Python Global Interpreter Lock
- Add a key-value pair to dictionary in Python
- Add Dictionary to Dictionary in Python
- Add Element to Tuple in Python
- Add in Dictionary Python
- Application to get live USD/INR rate Using Tkinter in Python
- Application to Search Installed Application using Tkinter in Python
- Arithmetic Expressions in Python
- Array to String in Python
- AX Contour in Python
- Best Way to Learn Python for Free
- Captcha Code in Python with Example
- CatPlot in Python
- Change Data Type in Python
- Check if a String is Empty in Python
- Algorithm for Factorial of a number in Python
- chr() and ord() Functions in Python
- Class and Static Methods in Python
- Compound Interest GUI Calculator using PyQt5 in Python
- Compound Interest GUI Calculator using Tkinter in Python
- Convert List to Array in Python
- Copying a file from one folder to Another with Python
- Create a Table Using Tkinter in Python
- Create First GUI Application using Tkinter in Python
- Create Table Using PyQt5 in Python
- Create the First GUI Application using PyQt5 in Python
- Cx_Oracle Python with Example
- Difference between Expression and Statement in Python
- Difference between For Loop and While Loop in Python
- Difference between Module and Package in Python
- Difference between Sort and Sorted in Python
- Enumerate() Function in Python
- Event Key in Python
- Exclusive OR in Python
- Exponentiation in Python
- Expressions in Python
- File Explorer using Tkinter in Python
- Filter List in Python
- Find key from value in dictionary python
- Find Words in String Python
- First unique character in a string Python
- Fsolve in Python
- GET and POST requests using Python
- Gethostbyname() function in Python
- GUI Calendar using PyQt5 in Python
- GUI Calendar using Tkinter in Python
- GUI to extract lyrics from a song Using Tkinter in Python
- GUI to Shut down, Restart and Logout from the PC using Tkinter in Python
- How to build a Virtual Assistant Using Python
- How to Fix an EOF Error in Python
- How to make a firewall in Python
- Comment starts with the symbol in Python
- Isodate Python
- Isreal() Python
- Loan Calculator using PyQt5 in Python
- Loan calculator using Tkinter in Python
- Make Notepad using Tkinter in Python
- Mrcnn Python
- OS Module in Python
- Paramiko Python Example
- Python BytesIO
- Python Deep Copy and Shallow Copy
- Python Glob
- Python Memory Management
- Python Operator Precedence
- Python Parser
- Python Project Ideas
- Python sklearn train_test_split
- Python SymPy
- Python Syntax Error Invalid Syntax
- Python Tricks: The Book
- Rank Based Percentile GUI Calculator using Tkinter in Python
- Rank Based Percentile GUI Calculator using PyQt5 in Python
- Screen Rotation app Using Tkinter in Python
- Simple GUI calculator using PyQt5 in Python
- Sort a dataframe based on a column in Python
- Spark and Python for big data with pyspark github
- Spell Corrector GUI using Tkinter in Python
- Standard GUI Unit Converter using PyQt5 in Python
- Standard GUI Unit Converter using Tkinter in Python
- Standard Scalar in Python
- STL in Python
- Sublime Python
- Text detection using Tkinter in Python
- To Do GUI Application using Tkinter in Python
- Weight Conversion GUI using Tkinter in Python