SupplyNetPy: Open-Source Python Library for Supply Chain Simulation Released.

Tushar Lone, Neha Karanjkar· July 14, 2026 View original

▶ The 60-second brief

Summary

SupplyNetPy is a new open-source Python library designed for high-fidelity modeling and discrete-event simulation of complex, multi-echelon supply chain networks. It supports various replenishment policies, perishable inventory, disruptions, and stochastic elements, providing extensive performance reports and enabling programmatic generation of models for design-space exploration and digital twins.

A new open-source Python library, SupplyNetPy, has been introduced to facilitate advanced modeling and simulation of supply chain networks. This library is designed for high-fidelity discrete-event simulations, capable of handling complex, multi-echelon structures. It offers robust support for various operational aspects, including different replenishment policies, the management of perishable inventory, the simulation of node disruptions, and the incorporation of stochastic demand and lead times. SupplyNetPy allows users to define a supply chain as a graph, specifying attributes for nodes and links. The library then manages the simulation process, generating detailed logs and comprehensive performance reports at both the node and network levels. A key motivation behind its development is to enable programmatic generation of intricate supply chain models, which is crucial for activities such as design-space exploration, "what-if" analysis, generating training data for machine learning, and building supply chain digital twins. The library has been validated against analytical benchmarks, commercial tools, and published case studies.

Why it matters

SupplyNetPy provides a powerful, flexible, and open-source tool for professionals to design, analyze, and optimize complex supply chains, leading to better resilience and efficiency.

How to implement this in your domain

  1. 1Download and explore the SupplyNetPy library to understand its capabilities for modeling your organization's supply chain.
  2. 2Use SupplyNetPy to create a digital twin of a critical segment of your supply chain to run "what-if" scenarios for disruptions or policy changes.
  3. 3Integrate SupplyNetPy into your data science workflows to generate synthetic training data for machine learning models predicting demand or inventory.
  4. 4Conduct design-space exploration using the library to evaluate the performance of different supply chain configurations under varying conditions.
  5. 5Benchmark existing supply chain strategies against new ones using SupplyNetPy's simulation and reporting features.

Who benefits

LogisticsManufacturingRetailE-commerceHealthcare

Key takeaways

  • SupplyNetPy is an open-source Python library for high-fidelity supply chain modeling and simulation.
  • It supports complex features like multi-echelon structures, perishable inventory, and stochastic events.
  • The library is valuable for design-space exploration, "what-if" analysis, and creating digital twins.
  • It provides extensive performance reports and is extensible via inheritance.

Original post by Tushar Lone, Neha Karanjkar

"arXiv:2607.09745v1 Announce Type: new Abstract: This paper introduces SupplyNetPy, an open-source, well-documented Python library for modeling and discrete-event simulation of supply chain networks with arbitrary multi-echelon structures. It supports multiple replenishment polici…"

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