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by The COBRApy Team


  • cobra.flux_analysis.reaction.assess was broken following the release of 0.6.0 and has now been fixed (and now with unit tests).
  • production_envelope failed when model C-source was formulated as -> x instead of x <-. Fixed added option to guess the C-source by taking the medium reaction with the highest input C flux.
  • model_to_pymatbridge needs scipy and that’s correctly handled now.

New features

  • flux_variability_analysis now has the pfba_factor parameter which enables the inclusion of a constraint on the max sum of absolute fluxes when doing FVA.

Deprecated features

  • cobra.flux_analysis.reaction.assess_{precursors,products} were essentially copies of each other and have been merged to cobra.flux_analysis.reaction.assess_component