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Fix examples of cuts #75

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Fix examples of cuts #75

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5 changes: 3 additions & 2 deletions examples/mp/callbacks/cut_callback.py
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Original file line number Diff line number Diff line change
Expand Up @@ -123,7 +123,8 @@ def build_supply_model(fixed_costs, supply_costs, use_cuts=False, **kwargs):
cut_cb.add_cut_constraint(supply[c, l] <= location_used)
print('* add cut constraints callback with {0} cuts'.format(len(cut_cb.cts)))

m.cut_callback = cut_cb
m.cut_callback = cut_cb

return m


Expand Down Expand Up @@ -160,7 +161,7 @@ def build_test_supply_model(use_cuts, **kwargs):
use_cuts = True
for arg in args[1:]:
if arg == '-cuts':
use_cuts = False
use_cuts = True
elif arg == '-nocuts':
use_cuts = False
else:
Expand Down
5 changes: 3 additions & 2 deletions examples/mp/callbacks/lazy_callback.py
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Original file line number Diff line number Diff line change
Expand Up @@ -117,7 +117,8 @@ def build_supply_model(fixed_costs, supply_costs, lazy=True, **kwargs):
m.sum(supply[c, l] for c in range_clients) <= (nb_clients - 1) * used[l] for l in range_locations)
print('* added lazy constraints callback with {0} constraints'.format(len(lazyct_cb.cts)))

m.lazy_callback = lazyct_cb
m.lazy_callback = lazyct_cb

m.parameters.preprocessing.presolve = 0
return m

Expand Down Expand Up @@ -157,7 +158,7 @@ def build_test_supply_model(lazy, **kwargs):
if arg == '-lazy':
use_lazy = True
if arg == '-nolazy':
use_lazy = True
use_lazy = False
else:
print('Unknown argument %s' % arg)
random = False
Expand Down