Unit-1 Introduction of Scripting Language: Python

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Python programming is one of the most popular and easy-to-learn coding languages in the world. It is widely used for making websites, apps, data analysis, automation, and AI projects. Many students start learning Python because its syntax is simple and beginner-friendly. If you are new to coding, Python for beginners is the best place to start because it helps you understand programming concepts step by step in an easy way. Python is also a great choice for building real projects and starting a career in software development.

Introduction to Python:-

Python is a popular and easy programming language that is used to create websites, apps, software, and many other projects. It was created by Guido van Rossum and first released in 1991. Python is called a beginner-friendly language because its syntax is simple and looks like the English language. This means new learners can understand and write code easily without confusion.

Python is used in many fields such as web development, data science, machine learning, artificial intelligence, automation, and game development. It has many powerful libraries and frameworks like Django and Flask for making websites, Pandas for data analysis, and TensorFlow for AI projects. Python also works on different operating systems like Windows, Mac, and Linux. Because it is easy, powerful, and widely used in companies, Python is one of the best languages for beginners and professionals.

Syntax of Python:-

Example of Python:-

output:-

Merits of Python:-

Easy to learn and simple syntax

Fast coding (less lines of code)

Large libraries and frameworks available

Works on all platforms (Windows, Linux, Mac)

Demerits of Python:-

Slower than C/C++

Uses more memory

Not best for mobile app development

Runtime errors occur (interpreted language)

Applications of Python in information industry:-

1. Web Development

Python is used to create websites and web applications. It helps in making:

Login pages

Admin panels

Online shopping websites

Dashboards

Popular frameworks: Django and Flask

2. Data Analysis

Python is widely used to work with data. It helps companies to:

Collect data

Clean data

Analyze data

Make reports and charts

Libraries used: Pandas, NumPy, Matplotlib

3. Artificial Intelligence (AI)

Python is one of the best languages for AI. AI means making machines smart, like:

Chat bots

Voice assistants

Face recognition

Smart recommendation systems

Libraries used: TensorFlow, PyTorch

4. Machine Learning (ML)

Machine learning is used to make predictions using data. Python helps in building ML models for:

Spam email detection

Movie recommendations

Customer behavior prediction

Product suggestions

Libraries used: Scikit-learn, TensorFlow

5. Automation

Python is used to automate repetitive tasks. It saves time and reduces manual work.

Examples:

Automatically sending emails

Renaming many files

Creating Excel reports

Data entry automation

6. Software Development

Python is used to build different software applications.

Examples:

Desktop applications

Billing software

Student management systems

• Simple tools and programs

Tools used: Tkinter, PyQt

7. Cyber Security

Python is used in cyber security to create security tools.

Examples:

Password checking programs

Vulnerability scanning tools

Penetration testing scripts

Python is useful because it is easy and powerful for scripting.