DecodeLabs Internship – Python Developer Track

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About This Repository

This repository is the complete portfolio of all 4 weekly Python projects completed during the DecodeLabs Industrial Training Program (Batch 2026).

Each project builds on the previous one — progressing from core data management logic, through numerical processing, into library integration, and finally to building interactive decision engines. Together, they form a structured backend Python foundation.

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Progress Timeline

Week	Theme	Project	Status
Week 1	Python Logic & Data Management	To-Do List App	✅ Complete
Week 2	Data Accumulation & Processing	Expense Tracker	✅ Complete
Week 3	Security & Library Integration	Password Generator	✅ Complete
Week 4	Decision Engines & Control Flow	GK Quiz	✅ Complete

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Repository Structure

DecodeLabs-Internship/
│
├── Week-1/
│   ├── README.md
│   └── Project-1-ToDo-List/
│       ├── todo.py
│       └── README.md
│
├── Week-2/
│   ├── README.md
│   └── Project-2-Expense-Tracker/
│       ├── expense_tracker.py
│       └── README.md
│
├── Week-3/
│   ├── README.md
│   └── Project-3-Password-Generator/
│       ├── password_generator.py
│       └── README.md
│
├── Week-4/
│   ├── README.md
│   └── Project-4-GK-Quiz/
│       ├── quiz.py
│       └── README.md
│
├── .gitignore
└── README.md

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Project Summaries

Week 1 — To-Do List App

A full CLI task manager with add, view, filter, mark-done, delete, search, and summary features. Tasks are persisted to a JSON file so data survives between runs.

Key concepts: list.append(), dictionaries, json.load/dump, f-strings, for-loops.

Week 2 — Expense Tracker

A CLI expense tracker that records descriptions and amounts, then calculates total spending using the accumulator pattern.

Key concepts: float() type casting, total += amount, input validation with try/except.

Week 3 — Password Generator

A CLI tool that generates cryptographically-inspired secure passwords of custom length with user-controlled character sets.

Key concepts: import random, import string, random.choices(), random.shuffle(), "".join().

Week 4 — General Knowledge Quiz (Optional Mastery)

A 5-question quiz engine that implements the IPOS architecture. Every answer is sanitized through a .strip().lower() filter pipeline before evaluation.

Key concepts: if/elif/else, accumulator state management, input sanitization, f-string alignment formatting.

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How to Run

Requirements: Python 3.6+ — no external libraries needed for any project.

# Week 1
cd Week-1/Project-1-ToDo-List
python todo.py

# Week 2
cd Week-2/Project-2-Expense-Tracker
python expense_tracker.py

# Week 3
cd Week-3/Project-3-Password-Generator
python password_generator.py

# Week 4
cd Week-4/Project-4-GK-Quiz
python quiz.py

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Skills Progression

Week 1  →  Lists, Dicts, File I/O, JSON, for-loops
Week 2  →  Math operations, Accumulators, Type casting, try/except
Week 3  →  import random/string, Randomization, String manipulation
Week 4  →  if/elif/else, IPOS architecture, Input sanitization, f-strings

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Internship Details

Field	Info
Organization	DecodeLabs
Program	Industrial Training Kit
Batch	2026
Role	Junior Python Developer (Intern)
Contact	decodelabs.tech@gmail.com
Phone	+91 89330 06408
Website	www.decodelabs.tech
Location	Greater Lucknow, India

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All projects completed and verified per the DecodeLabs quality standard.