cobra/manipulation/delete.py
def delete_model_genes(cobra_model, gene_list,
                       cumulative_deletions=True, disable_orphans=False):
    """delete_model_genes will set the upper and lower bounds for reactions
    catalysed by the genes in gene_list if deleting the genes means that
    the reaction cannot proceed according to
    cobra_model.reactions[:].gene_reaction_rule

    cumulative_deletions: False or True.  If True then any previous
    deletions will be maintained in the model.

    """
    if disable_orphans:
        raise NotImplementedError("disable_orphans not implemented")
    if not hasattr(cobra_model, '_trimmed'):
        cobra_model._trimmed = False
        cobra_model._trimmed_genes = []
        cobra_model._trimmed_reactions = {}  # Store the old bounds in here.
    # older models have this
    if cobra_model._trimmed_genes is None:
        cobra_model._trimmed_genes = []
    if cobra_model._trimmed_reactions is None:
        cobra_model._trimmed_reactions = {}
    # Allow a single gene to be fed in as a string instead of a list.
    if not hasattr(gene_list, '__iter__') or \
            hasattr(gene_list, 'id'):  # cobra.Gene has __iter__
        gene_list = [gene_list]

    if not hasattr(gene_list[0], 'id'):
        if gene_list[0] in cobra_model.genes:
                tmp_gene_dict = dict([(x.id, x) for x in cobra_model.genes])
        else:
            # assume we're dealing with names if no match to an id
            tmp_gene_dict = dict([(x.name, x) for x in cobra_model.genes])
        gene_list = [tmp_gene_dict[x] for x in gene_list]

    # Make the genes non-functional
    for x in gene_list:
        x.functional = False

    if cumulative_deletions:
        gene_list.extend(cobra_model._trimmed_genes)
    else:
        undelete_model_genes(cobra_model)

    for the_reaction in find_gene_knockout_reactions(cobra_model, gene_list):
        # Running this on an already deleted reaction will overwrite the
        # stored reaction bounds.
        if the_reaction in cobra_model._trimmed_reactions:
            continue
        old_lower_bound = the_reaction.lower_bound
        old_upper_bound = the_reaction.upper_bound
        cobra_model._trimmed_reactions[the_reaction] = (old_lower_bound,
                                                        old_upper_bound)
        the_reaction.lower_bound = 0.
        the_reaction.upper_bound = 0.
        cobra_model._trimmed = True

    cobra_model._trimmed_genes = list(set(cobra_model._trimmed_genes +
                                          gene_list))
def delete_model_genes(cobra_model, gene_list,
                       cumulative_deletions=True, disable_orphans=False):
    """delete_model_genes will set the upper and lower bounds for reactions
    catalysed by the genes in gene_list if deleting the genes means that
    the reaction cannot proceed according to
    cobra_model.reactions[:].gene_reaction_rule

    cumulative_deletions: False or True.  If True then any previous
    deletions will be maintained in the model.

    """
    if disable_orphans:
        raise NotImplementedError("disable_orphans not implemented")
    if not hasattr(cobra_model, '_trimmed'):
        cobra_model._trimmed = False
        cobra_model._trimmed_genes = []
        cobra_model._trimmed_reactions = {}  # Store the old bounds in here.
    # older models have this
    if cobra_model._trimmed_genes is None:
        cobra_model._trimmed_genes = []
    if cobra_model._trimmed_reactions is None:
        cobra_model._trimmed_reactions = {}
    # Allow a single gene to be fed in as a string instead of a list.
    if not hasattr(gene_list, '__iter__') or \
            hasattr(gene_list, 'id'):  # cobra.Gene has __iter__
        gene_list = [gene_list]

    if not hasattr(gene_list[0], 'id'):
        if gene_list[0] in cobra_model.genes:
                tmp_gene_dict = dict([(x.id, x) for x in cobra_model.genes])
        else:
            # assume we're dealing with names if no match to an id
            tmp_gene_dict = dict([(x.name, x) for x in cobra_model.genes])
        gene_list = [tmp_gene_dict[x] for x in gene_list]

    # Make the genes non-functional
    for x in gene_list:
        x.functional = False

    if cumulative_deletions:
        gene_list.extend(cobra_model._trimmed_genes)
    else:
        undelete_model_genes(cobra_model)

    for the_reaction in find_gene_knockout_reactions(cobra_model, gene_list):
        # Running this on an already deleted reaction will overwrite the
        # stored reaction bounds.
        if the_reaction in cobra_model._trimmed_reactions:
            continue
        old_lower_bound = the_reaction.lower_bound
        old_upper_bound = the_reaction.upper_bound
        cobra_model._trimmed_reactions[the_reaction] = (old_lower_bound,
                                                        old_upper_bound)
        the_reaction.lower_bound = 0.
        the_reaction.upper_bound = 0.
        cobra_model._trimmed = True

    cobra_model._trimmed_genes = list(set(cobra_model._trimmed_genes +
                                          gene_list))
def delete_model_genes ( cobra_model , gene_list , cumulative_deletions = True , disable_orphans = False ) : if disable_orphans : raise NotImplementedError ( "disable_orphans not implemented" ) if not hasattr ( cobra_model , '_trimmed' ) : cobra_model . _trimmed = False cobra_model . _trimmed_genes = [ ] cobra_model . _trimmed_reactions = { } # Store the old bounds in here. # older models have this if cobra_model . _trimmed_genes is None : cobra_model . _trimmed_genes = [ ] if cobra_model . _trimmed_reactions is None : cobra_model . _trimmed_reactions = { } # Allow a single gene to be fed in as a string instead of a list. if not hasattr ( gene_list , '__iter__' ) or hasattr ( gene_list , 'id' ) : # cobra.Gene has __iter__ gene_list = [ gene_list ] if not hasattr ( gene_list [ 0 ] , 'id' ) : if gene_list [ 0 ] in cobra_model . genes : tmp_gene_dict = dict ( [ ( x . id , x ) for x in cobra_model . genes ] ) else : # assume we're dealing with names if no match to an id tmp_gene_dict = dict ( [ ( x . name , x ) for x in cobra_model . genes ] ) gene_list = [ tmp_gene_dict [ x ] for x in gene_list ] # Make the genes non-functional for x in gene_list : x . functional = False if cumulative_deletions : gene_list . extend ( cobra_model . _trimmed_genes ) else : undelete_model_genes ( cobra_model ) for the_reaction in find_gene_knockout_reactions ( cobra_model , gene_list ) : # Running this on an already deleted reaction will overwrite the # stored reaction bounds. if the_reaction in cobra_model . _trimmed_reactions : continue old_lower_bound = the_reaction . lower_bound old_upper_bound = the_reaction . upper_bound cobra_model . _trimmed_reactions [ the_reaction ] = ( old_lower_bound , old_upper_bound ) the_reaction . lower_bound = 0. the_reaction . upper_bound = 0. cobra_model . _trimmed = True cobra_model . _trimmed_genes = list ( set ( cobra_model . _trimmed_genes + gene_list ) )
delete_model_genes will set the upper and lower bounds for reactions
    catalysed by the genes in gene_list if deleting the genes means that
    the reaction cannot proceed according to
    cobra_model.reactions[:].gene_reaction_rule

    cumulative_deletions: False or True.  If True then any previous
    deletions will be maintained in the model.
delete_model_genes will set the upper and lower bounds for reactions catalysed by the genes in gene_list if deleting the genes means that the reaction cannot proceed according to cobra_model . reactions [ : ] . gene_reaction_rule