Bug#961224: python-cobra: test failures on s390x

[peter green]

Source: python-cobra
Version: 0.18.0-1
Severity: serious

Three of the last four builds of python-cobra on s390x have failed with.

=================================== FAILURES ===================================
___________ test_model_summary_to_frame_with_fva[optlang-glpk-0.95] ____________

model = <Model e_coli_core at 0x3ff6e63b3d0>, opt_solver = 'optlang-glpk'
fraction = 0.95

     @pytest.mark.parametrize("fraction", [0.95])
     def test_model_summary_to_frame_with_fva(model, opt_solver, fraction):
         """Test model summary.to_frame() (using FVA)."""
         if opt_solver == "optlang-gurobi":
             pytest.xfail("FVA currently buggy")
         # test non-fva version (these should be fixed for textbook model)
         expected_in_fluxes = ['o2_e', 'glc__D_e', 'nh4_e', 'pi_e', np.nan,
                               np.nan, np.nan, np.nan, np.nan, np.nan, np.nan,
                               np.nan]
         expected_out_fluxes = ['h2o_e', 'co2_e', 'h_e', 'for_e', 'ac_e', 
'acald_e',
                                'pyr_e', 'etoh_e', 'lac__D_e', 'succ_e', 
'akg_e',
                                'glu__L_e']

model.solver = opt_solver

         solution = model.optimize()
         out_df = model.summary(solution, fva=fraction).to_frame()

assert out_df[('IN_FLUXES', 'ID')].tolist() == expected_in_fluxes

>       assert out_df[('OUT_FLUXES', 'ID')].tolist() == expected_out_fluxes
E       AssertionError: assert ['h2o_e', 'co... 'pyr_e', ...] == ['h2o_e', 
'co2...acald_e', ...]
E         At index 5 diff: 'pyr_e' != 'acald_e'
E         Use -v to get the full diff