Inventory Management System

A full-featured Inventory Management System built with Python and Tkinter, utilizing SQLite for database operations. This desktop application allows users to manage employees, products, suppliers, sales, categories, and generate detailed billing.

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🌟 Features

🔐 Authentication

• Employee login with role-based access (Admin & Employee).

🧑 Employee Management

• Add, update, delete, and search employees.

🧾 Billing System

• Cart functionality with live product stock updates.
• Dynamic bill generation with discount calculation.
• Print/save customer bills.

📦 Product Management

• Add, update, delete products with categories and supplier linking.
• Stock status handling.

📊 Dashboard

• Live statistics for total employees, products, suppliers, categories, and sales.

📂 Category & Supplier Management

• Add/delete categories and suppliers.

🧮 Calculator

• In-built calculator for quick calculations during billing.

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🛠️ Technologies Used

Component	Technology Used
Language	Python 3
GUI Library	Tkinter
DBMS	SQLite3
Image Handling	PIL (Pillow)
File System	OS, Tempfile, Subprocess

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🗃️ Project Structure

Inventory-Management-System/
├── billing.py           # Billing module
├── category.py          # Manage product categories
├── createDB.py          # Initialize database
├── dashboard.py         # Admin dashboard
├── employee.py          # Employee management
├── functions.py         # Shared utilities
├── main.py              # Login system
├── product.py           # Product management
├── sales.py             # Sales tracking
├── supplier.py          # Supplier management
├── sms.db               # SQLite database file
├── bill/                # Saved customer bills
└── img/                 # Images used in the UI

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🚀 Getting Started

1. Clone the Repository

git clone https://github.com/kishandev2509/Inventory-Management-System.git
cd Inventory-Management-System

2. Install Required Packages

Make sure pillow is installed:

pip install pillow

3. Run the Application

python main.py

Upon first run, the database sms.db will be initialized automatically.

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🔒 Default Admin Credentials

Employee ID: 1
Password: password
User Type: Admin

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📋 Use Cases

• Small-scale retail store
• Pharmacy or departmental billing system
• POS system for inventory and sales

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📸 Screenshots

(You may add GUI screenshots here of the dashboard, billing page, employee form, etc.)

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📝 Future Improvements

• PDF export for bills
• Dark mode support
• Network-based database sharing (multi-user support)

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🙏 Credits

This project was created and is maintained by Kishan Dev.

Special thanks to open-source communities and Python resources that inspired this project.

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