pysb.importers.sbml.model_from_sbml returns error when loading SBML

[devonjkohler]

Hi,
I am trying to read an SBML file into pysb using the model_from_sbml function. An example of the code I am running is as follows:
from pysb.importers.sbml import model_from_sbml pysb_model = model_from_sbml("sampleNetwork-1.xml")

When running this I get an error that reads: SympifyError: SympifyError: 'time'

I've checked my SBML file with an online SBML validator http://sbml.org/Facilities/Validator and it appears to be valid. Could you please check if this is a bug? I've attached the SBML file I am using below.

sampleNetwork-1.zip

[jmuhlich]

PySB doesn't support explicit time in mathematical expressions yet, but the team just discussed it and we devloped an implementation plan. I've added an issue to track this at #534. We have a few other things in the pipeline right now but will get to this feature fairly soon.