I tried to install SageMath 9.7 from conda-forge (my OS is Ubuntu 18.04) following the steps from this page.
I installed with the following command line :
$ mamba create -n sage sage python=3.9
Unfortunately, the Sage installation I got is not functional:
$ sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.7, Release Date: 2022-09-19 │
│ Using Python 3.9.13. Type "help()" for help. │
└────────────────────────────────────────────────────────────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
┃ Warning: sage.all is not available; this is a limited REPL. ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
sage: ZZ
---------------------------------------------------------------------------
NameError Traceback (most recent call last)
Cell In [1], line 1
----> 1 ZZ
NameError: name 'ZZ' is not defined
Any help wil be appreciated.