Editing RHS value within multiple solves in pyomo

[gül imamoğlu]

0

I am trying to switch Gams to pyomo so I'm unexperienced in pyomo. I have a basic model to demonstrate my problem. I want to change right hand side value of some constraints between repeated solves. I don't want to add new constraints because in this case, I going to need activate and deactivate constraints in loops. I tried to change model.A1 by assigning a new value but in constraint4 it keeps 0.

run gives

---1--- 20.0    8.0 

----1-2---- 15.0     11.0

but it should give

---1--- 20.0    8.0 

----1-2---- 20.0     10.0

Thanks in advance