opencobra/cobrapy — pull request #123 by aebrahim (2014-08-22 20:28:33+00:00)
Title: Further speedups and improvements to double deletions

The following changes are made:
- Errors while performing double deletions no longer silently result in 0 values.
- No longer solve a linear program when all reactions removed carry no flux in the optimal solution
- Compiling gene_reaction_rule strings results in faster determination of deleted reactions upon gene knockout.