Re: [EXTERNAL] TypeError: unsupported operand type(s) for *: 'int' and 'function'
Watson, Jean-Paul
This one is for Gabe and/or John. I went through your types and examples somewhat carefully, and don’t see anything weird at all.
jpw
From:
<pyomo...@googlegroups.com> on behalf of acastillo <anya.c...@gmail.com>
Reply-To: "pyomo...@googlegroups.com" <pyomo...@googlegroups.com>
Date: Friday, December 9, 2016 at 4:12 PM
To: Pyomo Forum <pyomo...@googlegroups.com>
Subject: [EXTERNAL] TypeError: unsupported operand type(s) for *: 'int' and 'function'
I'm getting the following error:
>>> type(mp.Delta)
<class 'float'>
>>> type(mp.e[omega,t,s])
<class 'pyomo.core.base.var._GeneralVarData'>
>>> type(mp.p_c[omega,t,s])
<class 'pyomo.core.base.var._GeneralVarData'>
>>> type(mp.E_0[s])
<class 'float'>
>>> type(mp.Mu[s])
<class 'float'>
>>> type(mp.Eta_d[s])
<class 'float'>
>>> type(mp.p_d[omega,t,s])
<class 'pyomo.core.base.var._GeneralVarData'>
>>> type(mp.p_c[omega,t,s])
<class 'pyomo.core.base.var._GeneralVarData'>
>>> type(mp.Eta_c[s])
<class 'float'>
>>> mp.e[omega,t,s] == mp.Delta*(mp.Eta_c[s]*mp.p_c[omega,t,s]-mp.p_d[omega,t,s]/mp.Eta_d[s])+mp.Mu[s]*mp.E_0[s]
<pyomo.core.base.expr_coopr3._EqualityExpression object at 0x1119db7c8>
>>> mp.e[omega,t,s] == mp.Mu[s]*mp.E_0[s]+mp.Delta*(mp.Eta_c[s]*mp.p_c[omega,t,s]-mp.p_d[omega,t,s]/mp.Eta_d[s])
Traceback (most recent call last):
File "/Applications/Eclipse.app/Contents/Eclipse/plugins/org.python.pydev_5.0.0.201605051159/pysrc/_pydevd_bundle/pydevd_exec2.py", line 3, in Exec
exec(exp, global_vars, local_vars)
File "<console>", line 1, in <module>
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/numvalue.py", line 466, in __radd__
return generate_expression(_radd,self,other)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/expr_coopr3.py", line 1105, in generate_expression
ans._coef = [ multiplier * other._coef ]
TypeError: unsupported operand type(s) for *: 'int' and 'function'
Both of the last lines (above) are the same, just re-arranged expression terms 1 & 2. However, I still get the following error once the constraint is built:
ERROR:pyomo.core:Constructing component 'storage_resource_constraints.energy_storage_level' from data=None failed:
TypeError: unsupported operand type(s) for *=: 'function' and 'int'
Traceback (most recent call last):
File "/Users/arcasti/Documents/workspace/offer_engine/scheduler/model.py", line 80, in <module>
main()
File "/Users/arcasti/Documents/workspace/offer_engine/scheduler/model.py", line 73, in main
model = create_scheduler_offer_model()
File "/Users/arcasti/Documents/workspace/offer_engine/scheduler/model.py", line 64, in create_scheduler_offer_model
storage_resource_constraints(model) # constraints (8)-(17)
File "/Users/arcasti/Documents/workspace/offer_engine/scheduler/block.py", line 27, in storage_resource_constraints
eq_energy_storage_level(b) # constraint (8)
File "/Users/arcasti/Documents/workspace/offer_engine/scheduler/con.py", line 55, in eq_energy_storage_level
m.energy_storage_level = Constraint(mp.scenario_set,mp.time_interval,mp.storage_set,rule=_eq_energy_storage_level)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/block.py", line 483, in __setattr__
self.add_component(name, val)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/block.py", line 849, in add_component
val.construct(data)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/constraint.py", line 749, in construct
cdata = self._check_skip_add(ndx, tmp)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/constraint.py", line 897, in _check_skip_add
condata.set_value(expr)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/constraint.py", line 473, in set_value
_args[1])
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/expr_coopr3.py", line 910, in generate_expression_bypassCloneCheck
ans = generate_expression(etype, _self, other)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/expr_coopr3.py", line 1057, in generate_expression
other.negate()
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/expr_coopr3.py", line 743, in negate
self.scale(-1)
File "/Users/arcasti/python34/pyomo/src/pyomo/pyomo/core/base/expr_coopr3.py", line 739, in scale
self._coef[i] *= val
TypeError: unsupported operand type(s) for *=: 'function' and 'int'
The original code is as follows:
def eq_energy_storage_level(m): # constraint (8)
mp = m.parent_block()
t_0 = min(mp.time_interval)
def _eq_energy_storage_level(_m,omega,t,s):
if t > t_0:
return mp.e[omega,t,s] == mp.Mu[s]*mp.e[omega,t-1,s] + mp.Delta*(mp.Eta_c[s]*mp.p_c[omega,t,s]-mp.p_d[omega,t,s]/mp.Eta_d[s])
else:
return mp.e[omega,t,s] == mp.Mu[s]*mp.E_0[s] + mp.Delta*(mp.Eta_c[s]*mp.p_c[omega,t,s]-mp.p_d[omega,t,s]/mp.Eta_d[s])
m.energy_storage_level = Constraint(mp.scenario_set,mp.time_interval,mp.storage_set,rule=_eq_energy_storage_level)
Advice?? Thanks! -Anya
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Siirola, John D
Anya,
Can you send me the model + data off-list so that I can look at it?
Thanks,
john