https://github.com/pyswmm/swmmio

Python tools for interacting with, editing, and visualizing EPA SWMM5 models
https://github.com/pyswmm/swmmio

civil-engineering hydraulic-modeling hydroinformatics python swmm5 watershed

Last synced: 5 months ago
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Python tools for interacting with, editing, and visualizing EPA SWMM5 models

• Host: GitHub
• URL: https://github.com/pyswmm/swmmio
• Owner: pyswmm
• License: mit
• Created: 2016-04-25T14:23:05.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2025-06-11T20:00:44.000Z (about 1 year ago)
• Last Synced: 2025-11-07T08:21:58.080Z (8 months ago)
• Topics: civil-engineering, hydraulic-modeling, hydroinformatics, python, swmm5, watershed
• Language: Python
• Homepage: https://swmmio.readthedocs.io
• Size: 15.2 MB
• Stars: 142
• Watchers: 11
• Forks: 46
• Open Issues: 35
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE
  • Authors: AUTHORS

Awesome Lists containing this project

• open-sustainable-technology - swmmio - Python tools for interacting with, editing, and visualizing EPA SWMM5 models. (Natural Resources / Water Supply and Quality)

README

          
# swmmio

*v0.8.2 (2025/06/11)*

_Programmatic pre and post processing for EPA Stormwater Management Model (SWMM)_

![workflow status](https://github.com/aerispaha/swmmio/actions/workflows/python-app.yml/badge.svg)

[![Documentation Status](https://readthedocs.org/projects/swmmio/badge/?version=latest)](https://swmmio.readthedocs.io/en/latest/?badge=latest)

![image](docs/_static/img/flooded_anno_example.png)

## Introduction

`swmmio` is a Python tool for engineers and hydrologists who need to supercharge their ability to modify and analyze EPA SWMM models and results. Using a familiar Pandas interface, users can replace manual procesess that used to live in spreadsheets with scripts and automation.

The core `swmmio.Model` object provides accessors to related elements in the INP and RPT. For example, `swmmio.Model.subcatchments` provides a DataFrame (or GeoDataFrame) joining data from the `[SUBCATCHMENTS]` and `[SUBAREAS]` tables in the model.inp file and, if available, the `Subcatchment Runoff Summary` from the model.rpt file. 

Additionally, `swmmio` provides a lower-level API for reading and writing (almost) all of the sections of the model.inp file which is useful for programmatically modifying EPA SWMM models.

## Installation

```bash

pip install swmmio

``` 

For documentation and tutorials, see our [documentation](https://swmmio.readthedocs.io/).