unsupported operand type(s) for *: 'int' and 'dict' for constraint

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ece kıvrar

December 04, 2021 18:24

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I was trying to get each matrix of parameters by reading data from excel. After defining parameters into dictionaries in python; I'm getting an error while making constraint definition. Error is unsupported operand type for int and dict. I coulnd't find the way to figure out the problem. Please help me with fixing this issue. Thank you

https://github.com/kivrare/senior/blob/main/try 

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• Official comment

  

  Simranjit Kaur

  • Gurobi Staff

  June 23, 2025 02:43 Edited

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum. Or why not try our AI Gurobot?.
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  Jaromił Najman

  • Gurobi Staff

  December 06, 2021 10:06 Edited

  Could you please share at least one of the excel files you use to make this issue reproducible? It would be great if you could reduce the size of the problem further to only use 1 excel file and 1 \(\texttt{for}\)-loop.

  Best regards,
  Jaromił

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