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Python framework for Systems Biology modeling [Lopez Lab Mods]
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alubbock Fix ModelNotDefinedError (pysb#452)
This error should be raised when self exporter is used and a model
component is declared before Model().
Latest commit 39fdaa4 Jul 12, 2019



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Python Systems Biology modeling framework

PySB (pronounced "Pie Ess Bee") is a framework for building rule-based mathematical models of biochemical systems. It works nicely with scientific Python libraries such as NumPy, SciPy and SymPy for model simulation and analysis.


PySB depends on the following:

For full instructions, see the Installation chapter of the manual at


The manual is available online at You can also generate the documentation locally by installing Sphinx and running the following commands:

$ cd doc
$ make html

Then open _build/html/index.html in your web browser.

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