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Issue with updating gurobipy version

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8 comments

  • Riley Clement
    Gurobi Staff Gurobi Staff

    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
    Conversationalist
    First Question

    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
    0
  • Riley Clement
    Gurobi Staff Gurobi Staff

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

    0
  • JUN ZHOU
    Conversationalist
    First Question

    It's gurobipy 10.0.0

    0
  • Riley Clement
    Gurobi Staff Gurobi Staff

    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

    0
  • David Torres Sanchez
    Gurobi Staff Gurobi Staff

    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

    0
  • JUN ZHOU
    Conversationalist
    First Question

    Riley and David, Thanks for your help.

    I'll try the method you suggested. 

    0
  • Diego Da Cruz Pereira
    Gurobi-versary
    First Comment

    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

    0

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