# Finance-Logistics-100-Python-Projects

    100 progressively difficult Python projects in **finance, business
    analytics, logistics, supply-chain, operations research, and network
    engineering** — built in the spirit of `Mini-Bio-Python-Projects`,
    retargeted at computational business engineering.

    The goal is not to "learn Python." The goal is to learn how to use
    Python to **understand, diagnose, model, optimize, and engineer real
    business systems** — moving from a single script to a modular
    application, to a data pipeline, to an optimization system, to an
    intelligent decision-support system.

    ## Learning Philosophy

    Each project answers a real business question. Complexity is always
    isolated inside modules — no 1,000-line `main.py`, no artificially
    inflated beginner projects. Architecture scales with difficulty:
    Phase 1 projects are `README.md` + `main.py`; Phase 8 projects have
    full `config/ data/ src/ tests/ notebooks/ models/ outputs/` trees.

    ## Project Map

    - **Phase 1** (`phase1_python_business_foundations/`) — projects 001–015

• Phase 2 (phase2_business_logic/) — projects 016–030

• Phase 3 (phase3_data_structures_business_systems/) — projects 031–045

• Phase 4 (phase4_file_handling_real_data/) — projects 046–060

• Phase 5 (phase5_numpy_simulation/) — projects 061–075

• Phase 6 (phase6_pandas_business_analytics/) — projects 076–085

• Phase 7 (phase7_visualization_network_analysis/) — projects 086–092

• Phase 8 (phase8_machine_learning_optimization/) — projects 093–100

    ## Phase Structure
  
    | Phase | Focus | Projects |
    |---|---|---|
    | 1 | Python Business Foundations | 001–015 |
    | 2 | Business Logic & Decision Systems | 016–030 |
    | 3 | Data Structures & Business Systems | 031–045 |
    | 4 | File Handling & Real Business Data | 046–060 |
    | 5 | NumPy, Simulation & Quantitative Computing | 061–075 |
    | 6 | Pandas & Business Intelligence | 076–085 |
    | 7 | Visualization, Graphs & Network Analysis | 086–092 |
    | 8 | Machine Learning, Optimization & Integrated Systems | 093–100 |
  
    ## Technology Progression
  
    Python → data structures → file handling → NumPy → Pandas →
    Matplotlib/Plotly → SciPy → NetworkX → scikit-learn → OR-Tools →
    integrated systems. See `roadmap.md` for the full skill map.
  
    ## Domain Roadmaps
  
    - **Finance:** cash flow, revenue, expenses, margins, pricing, loans,
      investments, risk, portfolio analysis, working capital,
      profitability, financial forecasting.
    - **Logistics:** inventory, warehouses, procurement, suppliers,
      transportation, routing, distributors, retailers, delivery,
      lead time, capacity, stockouts, demand.
    - **Operations Research:** linear/integer programming, transportation
      optimization, assignment, facility location, routing, resource
      allocation, scheduling, network flow.
    - **Network Analysis:** graph modeling, shortest paths, bottlenecks,
      centrality, dependency, resilience, flow networks.
    - **Machine Learning:** demand forecasting, delay prediction,
      supplier risk, inventory prediction, payment risk, cost
      prediction, anomaly detection, clustering.
  
    ## Installation
  
    ```bash
    git clone <this-repo-url>
    cd Finance-Logistics-100-Python-Projects
    python -m venv .venv && source .venv/bin/activate   # or .venv\Scripts\activate on Windows
    pip install -r requirements.txt   # root dev tooling (pytest, etc.)
    ```
  
    Each project also has its own `requirements.txt` with only the
    dependencies it actually needs — install those inside the project
    folder before running it.
  
    ## Usage
  
    ```bash
    cd phase1_python_business_foundations/project_001_personal_cash_flow_analyzer
    pip install -r requirements.txt
    python main.py
    ```
  
    ## Generating / Regenerating the Repository
  
    The full folder structure is produced by `file_generator.py`, driven
    by the metadata in `projects_data.py`. It is idempotent and will
    never overwrite an existing file unless you pass `--force`:
  
    ```bash
    python file_generator.py --root .
    python file_generator.py --root . --only 45     # regenerate one project
    python file_generator.py --root . --dry-run       # preview, write nothing
    ```
  
    ## Contribution Guidelines
  
    See `CONTRIBUTING.md`.
  
    ## Project Difficulty Levels
  
    - **Beginner** — 001–030
    - **Intermediate** — 031–060
    - **Advanced** — 061–085
    - **Professional** — 086–100
  
    ## Full Project Index
  
    | Project | Domain | Difficulty | Main Technology |
  

| ------- | ------ | ---------- | --------------- | | 001. Personal Cash Flow Analyzer | Finance | Beginner | Python (stdlib) | | 002. Simple Interest Calculator | Finance | Beginner | Python (stdlib) | | 003. Compound Interest Engine | Finance | Beginner | Python (stdlib) | | 004. Loan EMI Calculator | Finance | Beginner | Python (stdlib) | | 005. Profit Margin Calculator | Finance | Beginner | Python (stdlib) | | 006. Break-Even Calculator | Finance | Beginner | Python (stdlib) | | 007. Revenue Growth Analyzer | Finance | Beginner | Python (stdlib) | | 008. Expense Categorizer | Finance | Beginner | Python (stdlib) | | 009. Budget Variance Calculator | Finance | Beginner | Python (stdlib) | | 010. Invoice Generator | Finance | Beginner | Python (stdlib) | | 011. Product Pricing Calculator | Finance | Beginner | Python (stdlib) | | 012. Inventory Value Calculator | Logistics | Beginner | Python (stdlib) | | 013. Logistics Cost Calculator | Logistics | Beginner | Python (stdlib) | | 014. Landed Cost Calculator | Logistics | Beginner | Python (stdlib) | | 015. Small Business Financial Dashboard | Finance | Beginner | pandas | | 016. Progressive Tax Calculator | Finance | Beginner | Python (stdlib) | | 017. Investment Return Calculator | Finance | Beginner | Python (stdlib) | | 018. Loan Amortization Engine | Finance | Beginner | Python (stdlib) | | 019. Cash Reserve Simulator | Finance | Beginner | Python (stdlib) | | 020. Supplier Payment Scheduler | Finance | Beginner | Python (stdlib) | | 021. Customer Credit Limit Checker | Finance | Beginner | Python (stdlib) | | 022. Stock Reorder Calculator | Logistics | Beginner | Python (stdlib) | | 023. Safety Stock Calculator | Logistics | Beginner | Python (stdlib) | | 024. Economic Order Quantity Calculator | Logistics | Beginner | Python (stdlib) | | 025. Inventory Replenishment Engine | Logistics | Beginner | Python (stdlib) | | 026. Transportation Cost Estimator | Logistics | Beginner | Python (stdlib) | | 027. Vehicle Capacity Checker | Logistics | Beginner | Python (stdlib) | | 028. Delivery Priority Engine | Logistics | Beginner | Python (stdlib) | | 029. Supplier Risk Scorer | Logistics | Beginner | Python (stdlib) | | 030. Business Decision Rule Engine | Operations Research | Beginner | Python (stdlib) | | 031. Customer Ledger | Finance | Intermediate | Python (stdlib) | | 032. Supplier Ledger | Finance | Intermediate | Python (stdlib) | | 033. Product Catalog Engine | Logistics | Intermediate | Python (stdlib) | | 034. Warehouse Inventory Manager | Logistics | Intermediate | Python (stdlib) | | 035. Multi-Product Order System | Logistics | Intermediate | Python (stdlib) | | 036. Shipment Tracking System | Logistics | Intermediate | Python (stdlib) | | 037. Purchase Order Manager | Logistics | Intermediate | Python (stdlib) | | 038. Sales Order Manager | Finance | Intermediate | Python (stdlib) | | 039. Multi-Warehouse Stock Allocator | Logistics | Intermediate | Python (stdlib) | | 040. Distributor Management System | Logistics | Intermediate | Python (stdlib) | | 041. Retailer Network Manager | Logistics | Intermediate | Python (stdlib) | | 042. Supplier Performance Database | Logistics | Intermediate | Python (stdlib) | | 043. Customer Profitability Analyzer | Finance | Intermediate | Python (stdlib) | | 044. Product Profitability Analyzer | Finance | Intermediate | Python (stdlib) | | 045. End-to-End Order Lifecycle Simulator | Integrated | Intermediate | Python (stdlib) | | 046. CSV Expense Analyzer | Finance | Intermediate | pandas | | 047. Financial Transaction Cleaner | Finance | Intermediate | pandas | | 048. Bank Statement Analyzer | Finance | Intermediate | pandas | | 049. Sales CSV Analyzer | Finance | Intermediate | pandas | | 050. Inventory CSV Analyzer | Logistics | Intermediate | pandas | | 051. Supplier CSV Analyzer | Logistics | Intermediate | pandas | | 052. Delivery Performance Analyzer | Logistics | Intermediate | pandas | | 053. Transportation Cost Analyzer | Logistics | Intermediate | pandas | | 054. Warehouse Utilization Analyzer | Logistics | Intermediate | pandas | | 055. Stockout Analyzer | Logistics | Intermediate | pandas | | 056. Excess Inventory Detector | Logistics | Intermediate | pandas | | 057. Purchase Order Aging Analyzer | Logistics | Intermediate | pandas | | 058. Customer Payment Delay Analyzer | Finance | Intermediate | pandas | | 059. Logistics KPI Report Generator | Logistics | Intermediate | pandas | | 060. Business Data Quality Auditor | Integrated | Intermediate | pandas | | 061. Portfolio Return Calculator | Finance | Advanced | numpy | | 062. Portfolio Risk Calculator | Finance | Advanced | numpy | | 063. Monte Carlo Investment Simulator | Finance | Advanced | numpy | | 064. Demand Distribution Simulator | Logistics | Advanced | numpy | | 065. Inventory Uncertainty Simulator | Logistics | Advanced | numpy | | 066. Safety Stock Simulation | Logistics | Advanced | numpy | | 067. Warehouse Capacity Simulation | Logistics | Advanced | numpy | | 068. Transportation Cost Simulation | Logistics | Advanced | numpy | | 069. Lead-Time Variability Simulator | Logistics | Advanced | numpy | | 070. Stockout Probability Simulator | Logistics | Advanced | numpy | | 071. Multi-Product Inventory Simulation | Logistics | Advanced | numpy | | 072. Scenario-Based Profit Simulator | Finance | Advanced | numpy | | 073. Logistics Cost Sensitivity Analyzer | Logistics | Advanced | numpy | | 074. Working Capital Simulator | Finance | Advanced | numpy | | 075. Business Risk Monte Carlo Engine | Integrated | Advanced | numpy | | 076. Financial Performance Analyzer | Finance | Advanced | pandas | | 077. Monthly P&L Analyzer | Finance | Advanced | pandas | | 078. Regional Sales Analyzer | Finance | Advanced | pandas | | 079. SKU Performance Analyzer | Logistics | Advanced | pandas | | 080. Inventory Turnover Analyzer | Logistics | Advanced | pandas | | 081. Supplier Scorecard | Logistics | Advanced | pandas | | 082. Logistics Cost Dashboard | Logistics | Advanced | pandas | | 083. Customer Segmentation Analyzer | Finance | Advanced | pandas | | 084. Cost-to-Serve Analyzer | Logistics | Advanced | pandas | | 085. End-to-End Supply Chain Analytics System | Integrated | Advanced | pandas | | 086. Financial KPI Dashboard | Finance | Professional | pandas | | 087. Demand Trend Dashboard | Logistics | Professional | pandas | | 088. Inventory Health Dashboard | Logistics | Professional | pandas | | 089. Logistics Route Visualization | Logistics | Professional | pandas | | 090. Supply Chain Network Graph | Network Science | Professional | networkx | | 091. Logistics Bottleneck Detector | Network Science | Professional | networkx | | 092. Supply Chain Dependency Analyzer | Network Science | Professional | networkx | | 093. Demand Forecasting Model | Machine Learning | Professional | pandas | | 094. Delivery Delay Prediction | Machine Learning | Professional | pandas | | 095. Supplier Risk Prediction | Machine Learning | Professional | pandas | | 096. Inventory Stockout Prediction | Machine Learning | Professional | pandas | | 097. Customer Payment Risk Model | Machine Learning | Professional | pandas | | 098. Logistics Cost Prediction Model | Machine Learning | Professional | pandas | | 099. Vehicle Route Optimization System | Operations Research | Professional | pandas | | 100. Intelligent Finance + Logistics Network Simulator | Integrated | Professional | pandas |