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Installing packages using pip for Sage installed via apt

asked 2020-07-04 11:39:35 -0500

philipp7 gravatar image

updated 2020-07-04 16:54:58 -0500

slelievre gravatar image

Recently I tried to install packages for Sage using pip. Often the descriptions says to execute something like

sage -pip install package_name

If I execute that in the terminal I get the error

sage-run received unknown option: -pip

If I start sage in the terminal and execute it there I get invalid syntax errors. I tried the exact string from above, I tried pip install ... and -pip install .... All lead to a syntax error. What do I do wrong? This happens with all packages I tried.

I use a freshly installed virtual machine with Ubuntu 18.04 and SageMath version 8.1 which I installed using sudo apt install sagemath. Sage itself works perfectly fine and I can start it with sage from the terminal.

I have no real experience with linux, the terminal or with any of that stuff, so I am sure that I miss some really obvious things...

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answered 2020-07-04 16:52:12 -0500

slelievre gravatar image

updated 2020-07-04 16:58:20 -0500

The Sage you installed using sudo apt install sagemath uses the system Python.

So you can simply use

pip install package_name

Hopefully in the future we can make it so that

sage --pip install package_name

also works in the case when Sage is installed via a package manager such as apt, or at least prints out a helpful message telling the user to use pip instead of sage --pip or sage -pip.

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Thank you very much! If I only use "pip install package_name" I get a message with "ModuleNotFoundError: No module named 'sage'" and "ERROR: Command errored out with exit status 1: python setup-py egg_info"

philipp7 gravatar imagephilipp7 ( 2020-07-05 03:49:43 -0500 )edit

I installed sage the way eric_g suggested. Now all those sage -pip install ... work perfectly. I managed to install all the stuff I wanted. Thank you very much for both of your help!

philipp7 gravatar imagephilipp7 ( 2020-07-05 11:42:19 -0500 )edit
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answered 2020-07-05 07:56:30 -0500

eric_g gravatar image

Instead of using the Ubuntu package installed via sudo apt install, use the SageMath 9.1 binary for Ubuntu 18.04 downloaded from https://www.sagemath.org/download-lin.... In that version, you can run sage -pip install without any trouble; moreover, you'll get a much more recent version of Sage.

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Asked: 2020-07-04 11:39:35 -0500

Seen: 139 times

Last updated: Jul 04