swmm_api
Open Source
Pure-Python reading, editing and running of SWMM INP, RPT and OUT files — the full file-format toolkit.
PySWMM
DHS VerifiedActivePython interface to the SWMM engine — step through simulations, read state, and control gates in real time.
by Open Water Analytics
- Pricing
- Open Source
- License
- BSD-2-Clause
- Commercial use
- Permitted
- Ecosystem
- Python, SWMM
- Platform
- Windows, macOS, Linux
Install
pip install pyswmmAbout PySWMM
PySWMM, maintained under the Open Water Analytics community, wraps the SWMM5 engine in Python with an API that goes far beyond batch running: you can step the simulation one timestep at a time, read node and link state mid-run, and change control settings on the fly — which is exactly what real-time-control research and smart-stormwater pilots need.
It also serves the everyday cases: parameter sweeps, calibration loops, results extraction into pandas. If SWMM is in your workflow and Python is in your toolkit, PySWMM is the connection between them.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
Appears in collections
- FOSS Python Tools for Flood Modelling
Open-source Python packages that cover the flood workflow — from DEM to inundation map.
- The SWMM Ecosystem
The public-domain urban drainage engine and everything that grew around it.
Alternatives to PySWMM
Ranked by the topics, categories and workflow stages they share with PySWMM.
Causeway Flow
Commercial
Storm and foul water drainage design and 1D hydraulic modelling software for UK and Irish civil engineers.
EPA SSOAP Toolbox
Gov-Public
EPA's toolbox for sanitary sewer overflow planning — RDII analysis with the SWMM engine underneath.
EPA SWMM
Gov-PublicVerified
The public-domain engine of urban drainage: dynamic-wave pipe networks, runoff, LID and water quality.
LocalSWMM
Open Source
Browser-based urban stormwater and drainage modeling powered by OpenSWMM 6 compiled to WebAssembly.
MatSWMM
Open Source
MATLAB (and Python/LabVIEW) co-simulation with SWMM — built for real-time control research.