GAMS World Forum

Updated: I can now python setup.py install successfully. I can see gams module in my conda list. However, trying to from gams import * I got this error: File "C:\Users\<name>\AppData\Roaming\Python\Python39\site-packages\gams2numpy-0.1-py3.9.egg\gmdcc.py", line 71, in <module> GMD_NRSYMBOL...

Was the "python setup.py install" successful? Perhaps you can share the output of the command. What about setting the SETUPTOOLS_USE_DISTUTILS environment variable? -Michael python setup.py install was not successful for me. I did set: set SETUPTOOLS_USE_DISTUTILS=stdlib prior to running ...

What anaconda version, what Python version? See https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#building-identical-conda-environments to produce a spec list. Please share this and give the exact sequence of command that resulted in the failure. -Michael I'm using...

There is currently no "pip" for the GAMS modules. So not clear what you mean by "pip install". The install of the GAMS modules works by "cd <gams_sysdir>\apifiles\Python\api_39 && python setup.py install" as you can read from https://www.gams.com/latest/docs/AP...

Jan, With setuptools>=60.0.0 a breaking change has been introduced. Due to this breaking change the GAMS Python files are not installed correctly. To solve the issue, please try setting SETUPTOOLS_USE_DISTUTILS=stdlib before running setup.py Let me know if this helps, Clemens I tried to do this, bu...

Hello, I'm trying to import gams module into my python program and got the error: ModuleNotFoundError: No module named '_gdxcc' I know this probably has something to do with getting this module on the right path because when I pip install gdxcc, the requirement is already satisfied and the location ...

Hi everyone, I have a set d /NYCHI, NYBOS, NYDC, CHINY, BOSNY, DCNY / which is the set of trips between original points and destinations: NYC to Chicago, NYC to Boston, NYC to DC, and their reverse directions. I have a variable b which is the budget I need to prepare for my trip. I want to add a con...

Hi everyone, I'm fairly new to gams and I have a problem that I'd appreciate your input on: I have a set I which includes hours in a year so 1 to 8760. I have a variable g(h) which is index by hour h. I want to write an equation to satisfy these constraints: g(1) + g(2) + g(3) + g(4) = 0 g(3) + g(4)...