system_to_metatool (
        system,
        metext=[],
        metint=[],
        generate_names=1,
        )

Converts a Bio.Pathway.System object to a MetaTool input string.

Note that to be a valid input string, the enzyme names of the reactions in the system must conform to the MetaTool requirements.

Enzyme names are automatically genrated from the catalys attribute of each reaction using the following scheme:

enzymename = "".join([str(x[0]) for x in r.catalysts])

If an enzyme name has already been used, a positive integer will be appended to this name to meet the MetaTool input requirements. If this behaviour is undesired, set the optional parameter generate_names to false. All enzyme names will the be E_x, where x is an unique integer.

The optional parameters metext and metint can be used to specify the external and internal metabolites according to the following rules:

1. If metext is set, the species in it will be considered external. All other species will be considered internal.

2. Otherwise, if metint is set, the species in it will be considered internal. All other species will be considered external.

3. Otherwise, all species will be considered external.

If specified, metext and metint must not contains species that are not contained in the input system.