Search found 61 matches
- 2 days ago
- Forum: Syntax
- Topic: embeddedcode: Python
- Replies: 1
- Views: 182
Re: embeddedcode: Python
Hi, With gams.get() in embedded code Python, you will get all values of a symbol - e.g. level, marginal, etc. for a GAMS variable and need to process them manually afterwards. Here is some code snippet that reads and prints a variable x : embeddedCode Python: var_x = list(gams.get('x')) print(var_x)...
- 3 days ago
- Forum: Tools
- Topic: Data exchange from excel to gams (on macOS)
- Replies: 9
- Views: 11011
Re: Data exchange from excel to gams (on macOS)
Hi, The error indicates that you try to set data for your parameter twice. Perhaps your parameter has data already and you try to set data again from an embedded code section. Anyhow, the following code should bring the data from the Excel sheet into a two dimensional GAMS parameter: Parameter p(*,*...
- 2 weeks ago
- Forum: API
- Topic: Python API picking up wrong GAMS version
- Replies: 3
- Views: 1509
Re: Python API picking up wrong GAMS version
Hi,
Something seems to put in the GAMS 38 path into your configuration. Have you checked if the PYTHONPATH environment variable is set? Run from the Anaconda command prompt:
Best,
Clemens
Something seems to put in the GAMS 38 path into your configuration. Have you checked if the PYTHONPATH environment variable is set? Run from the Anaconda command prompt:
Code: Select all
echo %PYTHONPATH%
Clemens
- 2 weeks ago
- Forum: Archive Google Group
- Topic: GAMS Installation Error
- Replies: 3
- Views: 3623
Re: GAMS Installation Error
Hi, This is a Windows problem that can most likely be prevented by running the installer from a command prompt with /SILENT or /VERYSILENT. There is a note on this in the documentation: https://www.gams.com/latest/docs/UG_WIN_INSTALL.html image.png 1. Open command prompt 2. Switch to directory conta...
- 3 months ago
- Forum: Bugs
- Topic: GDX Export in Studio
- Replies: 2
- Views: 18590
Re: GDX Export in Studio
Hi again,
GAMS 45.6.0 was released yesterday. It comes with GAMS Studio 1.16.4 which contains the bug fix. Thanks again for reporting.
Best,
Clemens
GAMS 45.6.0 was released yesterday. It comes with GAMS Studio 1.16.4 which contains the bug fix. Thanks again for reporting.
Best,
Clemens
- 4 months ago
- Forum: Bugs
- Topic: GDX Export in Studio
- Replies: 2
- Views: 18590
Re: GDX Export in Studio
Hi Rob,
Indeed this is a bug. We are going to publish a fix for this as soon as possible. Thanks for reporting.
Best,
Clemens
Indeed this is a bug. We are going to publish a fix for this as soon as possible. Thanks for reporting.
Best,
Clemens
- 2 years ago
- Forum: API
- Topic: ModuleNotFoundError: No module named '_gams2numpy'
- Replies: 9
- Views: 57255
Re: ModuleNotFoundError: No module named '_gams2numpy'
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
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
- 2 years ago
- Forum: Syntax
- Topic: Running NEOS from Python API
- Replies: 7
- Views: 8715
Re: Running NEOS from Python API
I assume that the error is the same when running Kestrel from command line. So it seems that setting the SSL_CERT_FILE in [GAMS dir]\gmske_nt.cmd is not enough. If you allow me an experiment, could you change the following line of code in [GAMS dir]\gmske_nx.py (line 537): self.neos = xmlrpc.client....
- 2 years ago
- Forum: Syntax
- Topic: Running NEOS from Python API
- Replies: 7
- Views: 8715
Re: Running NEOS from Python API
Hi, It seems that the Kestrel solver uses an invalid certificate. Actually it should be aware of cacert.pem located in [GAMS dir]\GMSPython\Lib\site-packages\certifi. Does the Kestrel solver work from command line, if you do not have a Python script in between? There is also a Python example that de...
- 2 years ago
- Forum: API
- Topic: Python API error message
- Replies: 2
- Views: 6694
Re: Python API error message
Pei Huang, The PKG installer on macOS allows to add the GAMS system directory to the PATH variable when a Terminal is opened. You might want to double-check its content using echo $PATH , but since you are able to call gams and gamslib, I guess that this is set up correctly. If you run the python in...