Hello,
I am experiencing an issue using the Guava package in SageMath 10.3 with
GAP 4.12.2 installed on my system. The strange part is that *Guava works
when I use the GAP console inside Sage*, but it doesn't work when I try to
load it through Sage directly.
The Issue:
- *SageMath Version*: 10.3
- *GAP Version*: 4.12.2
- *Problem*: I can successfully load Guava when I open GAP via Sage’s
gap.console(), but *when I try to load it directly from Sage*, I get an
error. I have set the path to the external GAP binary in Sage, but this
doesn’t seem to fix the issue.
What I Tried:
1.
*Changing GAP Binaries*: I set the path to the external GAP binary
(installed on my system) by updating the SAGE_GAP_BINARY environment
variable and running source ~/.bashrc.
- Command: export SAGE_GAP_BINARY="/usr/local/bin/gap"
2.
*Setting Sage to Use My GAP*:
- I added the following to my Sage configuration to ensure Sage uses my
installed GAP version:
import sage.interfaces.gap sage.interfaces.gap.gap_cmd =
"/usr/local/bin/gap"
3.
*Trying to Load Guava*:
- After setting the gap_cmd correctly, I attempted to load the Guava
package using the following command within Sage:
gap.eval('LoadPackage("Guava");')
*Error Output*:
'fail'
4.
*Direct GAP Console Access*:
- When I open GAP directly via the terminal (not through Sage), and run
LoadPackage("Guava");, it works fine, loading the package without any
issues.
5.
*Trying GAP Console from Inside Sage*:
- When I use the following code to launch GAP inside Sage:
gap.console()
*Guava loads without any errors*.
6.
*Attempting Additional GAP Functions*:
- I attempted using
DirectoriesPackageLibrary("/home/seddas/gap-4.12.2/pkg/guava"), but it
returns an empty list ('[ ]').
- I also tried using SetPackagePath("/home/seddas/gap-4.12.2/pkg") to
set the correct path, but the issue persists.
7.
*Reinstalling Guava*:
- I double-checked the installation and directory structure, and Guava
seems to be installed correctly in /home/seddas/gap-4.12.2/pkg/guava.
Errors Encountered:
1.
*Error when loading Guava in Sage*:
'fail'
2.
*Error when trying to add the package directory in GAP*:
Error, Variable: 'AddPackageDirectory' must have a value
3.
*Error when attempting to set the GAP package directory*:
[ ]
Summary:
- *Guava works when accessed through Sage’s GAP console using
gap.console().*
- *When I try to load Guava through Sage directly, it fails.*
I would really appreciate your help, as I have been trying to resolve this
issue for several hours without success. Thank you very much!
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