Bank Account & Budget Management System Application

A Python-based banking application for managing multiple accounts, transactions, and budgets with Caesar cipher encryption for data security.

Installation

1. Clone the repository

git clone https://github.com/whydrmr/bank_application.git
cd bank_application
cd bank

2. Create a virtual environment (recommended)

Linux/macOS

python3 -m venv venv
source venv/bin/activate

Windows

python -m venv venv
venv\Scripts\activate

3. Install dependencies

pip install -r requirements.txt

GUI Version (tkinter required):

tkinter is part of Python's standard library but may need system-level installation:

Linux:

# Ubuntu/Debian/Mint
sudo apt-get install python3-tk

# Arch/Manjaro
sudo pacman -S tk

# Fedora/RHEL/CentOS
sudo dnf install python3-tkinter

macOS/Windows: tkinter is included with Python from python.org

Verify installation:

python -m tkinter

4. Structure

bank/
│
├── core/              
├── ui/                           
└── requirements.txt

5. Account File Encryption

Before running the application, the account file must be encrypted.

The project uses a simple Caesar cipher system for educational purposes.

Expected File Format

Replace a file named:

bank/core/compte.txt

Each line must follow this format:

IDENTIFIANT*MOTDEPASSE*NOM*CLE

Example:

1234*5678*Thomas*4321
9876*1111*Alice*8765

---

Encrypt the File

Run the encryption script:

python cryptage.py

This will generate:

bank/core/compte_crypte.txt

The encrypted file is the one used by the application.

6. Run the program in /bank_application directory:

python -m bank.ui.main