🐍 Python Project Portfolio

This repository contains Python projects completed as part of the "Learn Python" course by CodeChef. The course involved 700+ coding problems, concept-based lessons, and real-world projects that helped me strengthen my programming fundamentals and apply them practically.

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📚 Projects Overview

1. 📋 To-Do List App

A command-line based app to manage daily tasks. You can add, view, and delete your tasks.

• Skills Used: Lists, file operations, user input
• Use Case: Basic personal task manager

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2. 🧮 Word Counter

A Python script that takes text or a file and counts the frequency of each word.

• Skills Used: Strings, file reading, dictionaries
• Use Case: Text analysis, word frequency stats

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3. ❓ Quiz Game

A fun quiz game played in the terminal with multiple-choice questions and scoring.

• Skills Used: Conditional logic, loops, scoring system
• Use Case: Educational or fun practice quizzes

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4. 📇 Contact Manager

A simple CRUD system to manage contact records (name, phone, email) stored in a CSV file.

• Skills Used: File handling, record searching/updating
• Use Case: Contact book for small teams or personal use

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5. 🏪 Inventory Management System

Manage product stocks: add, view, update, delete products stored in inventory.csv.

• Skills Used: Dictionaries, CSV handling, input validation
• Use Case: Product tracking for shops or businesses
• ✅ Note: Output file inventory.csv can be encrypted using Project 7 for added security.

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6. 🎓 Student Database Manager

Manage student records (Roll No, Name, Age, Course, Department) with text file storage.

• Skills Used: Text file parsing, data validation, search & update
• Use Case: School/college student record system
• ✅ Note: Output file students.txt can also be encrypted with Project 7 to protect sensitive data.

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7. 🔐 File Encryption Tool

Encrypt and decrypt any file using the cryptography library (Fernet symmetric encryption).

• Skills Used: File I/O (binary mode), encryption key generation, exception handling
• Use Case: Secure any .txt or .csv file — perfect for protecting data files like:
  • inventory.csv from Project 5
  • students.txt from Project 6

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🔒 Real-World Use Case

By combining Projects 5, 6, and 7:

• You can store structured data in CSV or TXT format
• Then encrypt these files to secure confidential records like:
  • Student info
  • Product inventory
• This simulates basic data protection workflows found in real-world data handling and cleaning.

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📜 Certificate

Completed as part of the "Learn Python" course by CodeChef
🆔 Certificate ID: f641a86 Username: shadow_fort_76 🔗 Verify here

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🚀 Key Concepts Applied

• Variables, Data Types, and Operators
• Control Flow and Functions
• Lists, Tuples, Dictionaries, Sets
• File Operations (text and binary)
• Problem-solving with 700+ coding challenges
• Real-world file-based project building

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🧠 Why This Matters ?

These projects were more than just academic exercises. They gave me a strong foundation in building backend tools that are relevant in:

• Data Cleaning & Preprocessing
• Automation Scripts
• Secure File Management
• CLI App Prototyping

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