Issue with updating gurobipy version

Answered

JUN ZHOU

• July 20, 2023 04:10

I attmpted to upgrade the gurobipi version using pip, as show below . Something went wrong. Thanks for your help.

python -m pip install gurobipy==10.0.1

ERROR: Cannot uninstall 'gurobipy'. 
It is a distutils installed project and thus we cannot accurately determine 
which files belong to it which would lead to only a partial uninstall.

Related to

• Installation
• Python

0

• 

  Riley Clement

  Gurobi Staff

  • July 20, 2023 04:18

  Hi Jun,

  Can you try with the following?

  python -m pip install --ignore-installed gurobipy==10.0.1
  

  - Riley

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• 

  JUN ZHOU

  • July 20, 2023 04:23

  

  

  

  Thanks for your reply, Riley. I tried the code, but the version is still 10.0.0.

  C:\Users\whu14>python -m pip install --ignore-installed gurobipy==10.0.1
  Collecting gurobipy==10.0.1
    Using cached gurobipy-10.0.1-cp310-cp310-win_amd64.whl (9.6 MB)
  Installing collected packages: gurobipy
  Successfully installed gurobipy-10.0.0

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• 

  Riley Clement

  Gurobi Staff

  • July 20, 2023 04:33

  Hmm this is strange.  What version does "python -m pip list" show?

  0
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  JUN ZHOU

  • July 20, 2023 04:43

  

  

  

  It's gurobipy 10.0.0

  

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• 

  Riley Clement

  Gurobi Staff

  • July 20, 2023 04:49
  • Edited

  I will do a bit of digging, but I suggest trying to uninstall (perhaps a couple of times) with both

  python -m pip uninstall gurobipy
  pip uninstall gurobipy

  then verifying that it is not installed with pip list and then trying to install from scratch

  python -m pip install --no-cache-dir gurobipy

  - Riley


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• 

  David Torres Sanchez

  Gurobi Staff

  • July 20, 2023 08:02

  Hi Jun,

  This is probably because you installed \(\texttt{gurobipy}\) initially using the setup.py method (from  How do I install Gurobi for Python?).
  I think you need to go into the directory where the package lives and manually delete all the files.
  After this, you should be able to run the original  \(\texttt{pip install}\) command with no issues.

  To find out where the package currently lives you can do:

  import gurobipy
  print(gurobipy.__file__)

  Then make sure you delete all folders in the package directory with \(\texttt{gurobipy*}\).

  Cheers, 
  David

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  JUN ZHOU

  • July 20, 2023 15:08

  

  

  

  Riley and David, Thanks for your help.

  I'll try the method you suggested. 

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• 

  Diego Da Cruz Pereira

  • August 18, 2023 10:06

  

  

  Hi all

  I had the same error. I had to download the gurobipy file hier gurobipy · PyPI save where I have Python installed and then run:

  python -m pip install --ignore-installed file

  I hope it helps

  Regards,

  Diego

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