Desktop app to manage TNEB/TANGEDCO electricity meter readings (R/Y/B), calculate bi‑monthly bills with tariff slabs, and export reports to Excel.

• Clean Tkinter GUI for reading input and validation
• Bill calculation with slab breakdown and threshold warnings
• Results panel and rotation recommendations
• Exports: TANGEDCO format, summary, and detailed history (Excel/CSV)
• Storage: SQLite (default) or CSV, with backup/restore

Requirements: Python 3.8+ and Tk support.

Install dependencies:

python -m pip install -r requirements.txt

Run the app:

python main.py

A helper script builds a single-file exe:

./build_exe.ps1

Output: dist\tneb_manager.exe

Notes:

• If tkinter is missing on Linux, install it via your package manager (e.g., sudo apt-get install python3-tk).
• If you add new resource folders, update build_exe.ps1 to include them via --add-data.

models/   # billing logic and models
gui/      # Tkinter UI components
data/     # persistence, exports, and config helpers
main.py   # entrypoint

See Help → About in the app. Credits are defined in credits.py.

MIT — see LICENSE.

This repo excludes build and runtime artifacts via .gitignore:

• dist/, build/, *.spec, .venv/, __pycache__/
• Runtime data under data/ (DB, backups, CSVs, config)