File gurobi_interface.py has 686 lines of code (exceeds 250 allowed). Consider refactoring.

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# Copyright 2013 Novo Nordisk Foundation Center for Biosustainability,
# Technical University of Denmark.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.

Model has 21 functions (exceeds 20 allowed). Consider refactoring.

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class Model(interface.Model):

    def _initialize_problem(self):
        self.problem = gurobipy.Model()
        self.problem.params.OutputFlag = 0

Function _initialize_model_from_problem has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.

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    def _initialize_model_from_problem(self, problem):
        if isinstance(problem, gurobipy.Model):
            self.problem = problem
            variables = []
            for gurobi_variable in self.problem.getVars():

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Function _add_constraints has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

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    def _add_constraints(self, constraints, sloppy=False):
        super(Model, self)._add_constraints(constraints, sloppy=sloppy)
        for constraint in constraints:
            if constraint.lb is None and constraint.ub is None:
                raise ValueError("optlang does not support free constraints in the gurobi interface.")

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Function __init__ has 7 arguments (exceeds 4 allowed). Consider refactoring.

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    def __init__(self, lp_method='primal', qp_method='primal', presolve=False,

Function _add_variables has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

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    def _add_variables(self, variables):
        super(Model, self)._add_variables(variables)
        for variable in variables:
            if variable.lb is None:
                lb = -gurobipy.GRB.INFINITY

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Function _constraint_lb_and_ub_to_gurobi_sense_rhs_and_range_value has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

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def _constraint_lb_and_ub_to_gurobi_sense_rhs_and_range_value(lb, ub):
    """Helper function used by Constraint and Model"""
    if lb is None and ub is None:
        raise Exception("Free constraint ...")
    elif lb is None:

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Function __setstate__ has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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    def __setstate__(self, state):
        for key, val in state.items():
            if key != "tolerances":
                setattr(self, key, val)
        for key, val in state["tolerances"].items():

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Function _get_expression has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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    def _get_expression(self):
        if self.problem is not None:
            gurobi_problem = self.problem.problem
            gurobi_constraint = self._internal_constraint
            row = gurobi_problem.getRow(gurobi_constraint)

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Function _set_constraint_bounds has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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    def _set_constraint_bounds(self, sense, rhs, range_value):
        gurobi_constraint = self.problem.problem.getConstrByName(self.name)
        gurobi_constraint.setAttr('Sense', sense)
        gurobi_constraint.setAttr('RHS', rhs)

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Function __init__ has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.

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    def __init__(self, lp_method='primal', qp_method='primal', presolve=False,
                 verbosity=0, timeout=None, *args, **kwargs):
        super(Configuration, self).__init__(*args, **kwargs)
        self.verbosity = verbosity
        self.lp_method = lp_method

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