Pyomo 제약에'목록은'개체가 없는 특성

내가 만드는 pyomo 제도록 Eout_pv[t]<=PV_gen[t]각각의 값 t.

내 코드는 아래 나는 첫 번째 만들기 세트 매개 변수를 변수입니다. 나는 그들의 제약 조건이 있습니다.

model.T = Set(initialize=df.index.tolist(), ordered=True)
model.PV_gen = Param(model.T, initialize=df.pv_gen.tolist())

model.Eout_pv = Var(model.T, bounds=(0, 100))

def pv_export(model, t):
    return model.Eout_pv[t] <= model.PV_gen[t]   
model.pv_export = Constraint(model.T, rule=pv_export)

이 코드를 실행하는 메시지가 표시됩니"AttributeError:'목록의'객체의 특성이 없음'is_expression_type'"

나는 것이 매우 어떤 도움에 감사

전체 오류 메시지가 아래

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-47-3de19250551e> in <module>
      2 
      3 start_time = time.time()
----> 4 output_df = optimize_year(df, first_model_period, last_model_period, result_time_step)
      5 print("--- %s seconds ---" % (time.time() - start_time))

<ipython-input-47-a84557fa2321> in optimize_year(df, first_model_period, last_model_period, time_step)
     72         return model.Eout_pv[t] <= model.PV_gen[t]
     73 
---> 74     model.pv_export = Constraint(model.T, rule=pv_export)
     75 
     76     def total_export(model, t):

C:\ProgramFiles2\Anaconda\lib\site-packages\pyomo\core\base\block.py in __setattr__(self, name, val)
    541                 # Pyomo components are added with the add_component method.
    542                 #
--> 543                 self.add_component(name, val)
    544             else:
    545                 #

C:\ProgramFiles2\Anaconda\lib\site-packages\pyomo\core\base\block.py in add_component(self, name, val)
   1079                              _blockName, str(data))
   1080             try:
-> 1081                 val.construct(data)
   1082             except:
   1083                 err = sys.exc_info()[1]

C:\ProgramFiles2\Anaconda\lib\site-packages\pyomo\core\base\constraint.py in construct(self, data)
    774             for ndx in self._index:
    775                 try:
--> 776                     tmp = apply_indexed_rule(self,
    777                                              _init_rule,
    778                                              _self_parent,

C:\ProgramFiles2\Anaconda\lib\site-packages\pyomo\core\base\misc.py in apply_indexed_rule(obj, rule, model, index, options)
     59                 return rule(model)
     60             else:
---> 61                 return rule(model, index)
     62         else:
     63             if index.__class__ is tuple:

<ipython-input-47-a84557fa2321> in pv_export(model, t)
     70     def pv_export(model, t):
     71         "Maximum PV export within a single period"
---> 72         return model.Eout_pv[t] <= model.PV_gen[t]
     73 
     74     model.pv_export = Constraint(model.T, rule=pv_export)

pyomo\core\expr\numvalue.pyx in pyomo.core.expr.numvalue.NumericValue.__le__()

pyomo\core\expr\logical_expr.pyx in pyomo.core.expr.logical_expr._generate_relational_expression()

AttributeError: 'list' object has no attribute 'is_expression_type'