GurobiPy 3.7 - When and Why has this not been done

Answered

Gary Howorth

• October 24, 2019 08:10

Just upgraded to python 3.7  on windows.  See that gurobi py only supported to 3.6.  

I would have thought that the 3.6 version would have worked on python 3.7 with minimal changes - so why has this not been done already.  very poor show.  I see Mac supports gurobipy 3.7 

 

AMPL works FICOexpress works but gurobiPy

 

So is there an ETA on this ?

 

Or is there some sort of work around - eg manual change to source 

 

Thanks in advance 

 

 

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  Jennifer Locke

  Gurobi Staff

  • October 24, 2019 15:09

  What version of Gurobi optimizer are you using?  Gurobi 8.1.1 supports python 2.7, 3.5, 3.6, and 3.7.  

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  Gary Howorth

  • October 24, 2019 15:38

  

  

  

  The latest 8.1.1

   

  see this https://www.gurobi.com/documentation/8.1/quickstart_mac/the_gurobi_python_interfac.html   link 

   

  "gurobipy can be used with Python 2.7, 3.6, or 3.7 on Mac OS."   

  So it doesn't appear that it works on windows .  Ive been told this will be fixed in version 9

   

   

  This is confirmed by the fact that pip3.7 install gurobipy  does not work  -  

  ERROR: Could not find a version that satisfies the requirement gurobipy (from versions: none)
  ERROR: No matching distribution found for gurobipy

   

  Works fine on python 3.6

   

   

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  Silke Horn

  Gurobi Staff

  • October 24, 2019 16:04

  Actually, Python 3.7 should already be supported with Gurobi 8.1.1. See here. (You have been on the Mac page, but there is an equivalent one for Windows.)

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  Gary Howorth

  • October 24, 2019 16:28

  

  

  

  Thanks silke

  but why does the pip install not work .

   

  I have a brand new separate version of python 3.7 downloaded two days ago.  

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  Silke Horn

  Gurobi Staff

  • October 24, 2019 16:42

  Gurobi does not yet offer pip install. (It's on the roadmap though.)

  You can install it with Anaconda or via the pysetup program in the Gurobi <installdir>/bin directory.

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  Gary Howorth

  • October 24, 2019 16:43

  

  

  

  OK the gurobi py version on pypi is an old one - 2013  like version 5 .  This works with 3.6 but not with 3.7. 

   

  I see you recommend to install with Anaconda but i dont want to install anaconda.   

   

  So can i download a python wheel or egg of  the appropriate files and run  setup.py install.  or maybe a tar.gz zip file

  Do you have a link to those files anywhere 

   

   

   

   

   

   

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  Gary Howorth

  • October 24, 2019 16:47

  

  

  

  ok you just answered my question - its in the gurobi directory .  many thanks 

   

  ps fyi https://pypi.org/project/gurobipy/

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