Python Basics | Python Tutorial For Beginners | Learn Python Programming from Scratch | Edureka

Introduction

This tutorial is designed for beginners looking to learn Python programming from scratch. It covers key concepts, features, and practical applications of Python, making it an ideal starting point for anyone interested in coding or data analytics.

Step 1: Understand What Python Is

• Python is a high-level, interpreted programming language known for its readability and simplicity.
• It supports multiple programming paradigms, including procedural, object-oriented, and functional programming.
• Python is widely used in various fields such as web development, data science, artificial intelligence, and automation.

Step 2: Explore Python Features

• Easy Syntax: Python's syntax is clear and intuitive, which makes it accessible for beginners.
• Extensive Libraries: Python has a rich set of libraries and frameworks, such as NumPy, Pandas, and Flask, which enhance its capabilities.
• Cross-Platform Compatibility: Python works on multiple operating systems, including Windows, Linux, and Mac.

Step 3: Identify Who Uses Python

• Data Scientists: For data analysis and machine learning.
• Web Developers: To build dynamic websites and applications.
• Automation Engineers: For scripting and automating tasks.
• Researchers: For scientific computing and data visualization.

Step 4: Set Up Your Python Environment

1. Download and install Python from the official website (https://www.python.org).
2. Choose an Integrated Development Environment (IDE) or code editor:
   • Options include PyCharm, Visual Studio Code, or Jupyter Notebook.
3. Verify your installation by running the following command in your terminal or command prompt:

   python --version
   

Step 5: Learn About Data Types in Python

• Common data types include:
  • Integers: Whole numbers (e.g., 5, -3)
  • Floats: Decimal numbers (e.g., 3.14, -0.001)
  • Strings: Text (e.g., "Hello, World!")
  • Booleans: True or False values.

Step 6: Master Operators in Python

• Arithmetic Operators:
  • Addition: +
  • Subtraction: -
  • Multiplication: *
  • Division: /
• Comparison Operators:
  • Equality: ==
  • Greater than: >
  • Less than: <

Step 7: Implement Flow Control

• Use conditional statements to control the flow of execution:

  if condition:
      # code to execute if condition is true
  else:
      # code to execute if condition is false
  

• Utilize loops for repetitive tasks:
  • For loop:

    for i in range(5):
        print(i)
    

  • While loop:

    while condition:
        # code to execute
    

Step 8: Create Functions

• Define functions to organize code and improve reusability:

  def my_function(parameter):
      # code block
      return result
  

Step 9: Perform File Handling

• Open, read, and write files using Python:

  with open('filename.txt', 'r') as file:
      content = file.read()
  

Conclusion

In this tutorial, you explored the basics of Python programming, including its features, data types, operators, flow control, functions, and file handling. As a next step, consider practicing these concepts by building small projects or exploring more advanced topics such as machine learning and data analysis. Happy coding!