Setting Up

In short: Install sage from conda-forge.

Download and install Mambaforge.
- i.e., open a Terminal,
  - curl -L -O https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-$(uname)-$(uname -m).sh
    sh Mambaforge-$(uname)-$(uname -m).sh
Create a "sage" environment and pick a version of SageMath, i.e., open a new terminal and mamba create -n sage sage=9.3
To run SageMath, activate the environment you just created and run SageMath, i.e., source activate sage and sage

The above instructions are being added to the Sage documentation in https://trac.sagemath.org/ticket/33655

Conda for Sage Developers

You can develop Sage without building any of its dependencies (experimental) --- on my machine this takes 5 minutes. Assume you obtained Sage source tree and changed to its root. These instructions have been updated for #30845 and are being added to the Sage installation guide in #33426

$ export SAGE_NUM_THREADS=24                             # or whatever the meaningful value
                                                         # for your machine is - no more than 
                                                         # the number of cores.

$ conda install mamba                                    # This is a recommended optional step.
                                                         # If you skip it, replace "mamba" by
                                                         # "conda" in the following steps.

$ mamba create -n sage-build python=3.9 \
      gettext autoconf automake libtool pkg-config       # or replace 3.9 by another version

$ conda activate sage-build

$ ./bootstrap                                            # this generates src/environment.yml
                                                         # used in the next step

$ mamba env update -n sage-build -f src/environment.yml  # alternatively, use 
                                                         # src/environment-optional.yml 
                                                         # for some additional packages
$ conda activate sage-build

$ ./configure --with-python=$CONDA_PREFIX/bin/python             \
              --prefix=$CONDA_PREFIX                             \
              $(for pkg in $(./sage -package list :standard:     \
                               --has-file spkg-configure.m4      \
                               --has-file distros/conda.txt); do \
                    echo --with-system-$pkg=force;               \
                done)

$ pip install --no-build-isolation -v -v --editable pkgs/sage-conf pkgs/sage-setup 

$ pip install --no-build-isolation -v -v --editable src

$ sage -c 'print(version())'
SageMath version 9.6.beta5, Release Date: 2022-03-12

By using pip install --editable, the Sage library is installed in editable mode. This means that when you only edit Python files, there is no need to rebuild the library; it suffices to restart Sage.

After editing any Cython files, rebuild by repeating the command

$ pip install --no-build-isolation -v -v --editable src

More information

see https://trac.sagemath.org/wiki/Distribution#CondaAnacondaMinicondaCondaForge

-  ⇤ ← Revision 24 as of 2021-11-12 06:13:14 → 
  Size: 2331
  Editor: mkoeppe
  Comment:
+   ← Revision 33 as of 2022-04-25 21:52:34 → ⇥
  Size: 3673
  Editor: mkoeppe
  Comment: replace some info with a link to https://trac.sagemath.org/wiki/Distribution
-Deletions are marked like this.
+Additions are marked like this.
 Line 17:
-= Maintenance =

The packages necessary to run sage are developed on the github pages of conda-forge. The actual [[https://github.com/conda-forge/sage-feedstock/tree/master/recipe|sage package]] and many of its dependencies are maintained by Isuru Fernando (and a few volunteers).
+The above instructions are being added to the Sage documentation in https://trac.sagemath.org/ticket/33655
-Line 23:
+Line 21:
-You can develop Sage without building any of its dependencies (experimental) --- on my machine this takes 5 minutes. Assume you obtained Sage source tree and changed to its root.
+You can develop Sage without building any of its dependencies (experimental) --- on my machine this takes 5 minutes. Assume you obtained Sage source tree and changed to its root. These instructions have been updated for [[https://trac.sagemath.org/ticket/30845|#30845]] and are being added to the Sage installation guide in [[https://trac.sagemath.org/ticket/33426|#33426]]
-Line 26:
+Line 24:
- $export SAGE_NUM_THREADS=24 # or whatever the meaningful value for you is - no more than the number of cores.$  conda install mamba
$ mamba create -n sage-build python=3.9 gettext autoconf automake libtool pkg-config
+ $export SAGE_NUM_THREADS=24                             # or whatever the meaningful value                                                          # for your machine is - no more than                                                           # the number of cores.$  conda install mamba                                    # This is a recommended optional step.
                                                         # If you skip it, replace "mamba" by
                                                         # "conda" in the following steps.

$ mamba create -n sage-build python=3.9 \
      gettext autoconf automake libtool pkg-config       # or replace 3.9 by another version
-Line 30:
+Line 36:
- $. / b o o t s t r a p$  mamba env update -n sage-build -f src/environment.yml
+ $./bootstrap                                            # this generates src/environment.yml                                                          # used in the next step$  mamba env update -n sage-build -f src/environment.yml  # alternatively, use 
                                                         # src/environment-optional.yml 
                                                         # for some additional packages
-Line 33:
+Line 44:
- $. / c o n f i g u r e - - w i t h - p y t h o n =$ CONDA_PREFIX/bin/python --with-system-gcc=force  --enable-download-from-upstream-url
 $p i p i n s t a l l - v - v p k g s / s a g e - c o n f p k g s / s a g e - s e t u p$  pip install --no-build-isolation -r src/requirements.txt -e src
+ $. / c o n f i g u r e - - w i t h - p y t h o n =$ CONDA_PREFIX/bin/python             \
              --prefix= $C O N D A_{P} R E F I X$ (for pkg in  $(. / s a g e - p a c k a g e l i s t : s t a n d a r d : - - h a s - f i l e s p k g - c o n f i g u r e . m 4 - - h a s - f i l e d i s t r o s / c o n d a . t x t); d o e c h o - - w i t h - s y s t e m -$ pkg=force;               \
                done)

 $p i p i n s t a l l - - n o - b u i l d - i s o l a t i o n - v - v - - e d i t a b l e p k g s / s a g e - c o n f p k g s / s a g e - s e t u p$  pip install --no-build-isolation -v -v --editable src
-Line 37:
+Line 58:
-SageMath version 9.2, Release Date: 2020-10-24
+SageMath version 9.6.beta5, Release Date: 2022-03-12
-Line 40:
+Line 61:
-= Open Issues =
+By using `pip install --editable`, the Sage library is installed in editable mode.
This means that when you only edit Python files, there is no need to rebuild the library; 
it suffices to restart Sage.
-Line 42:
+Line 65:
-== General ==
+After editing any Cython files, rebuild by repeating the command
{{{
$ pip install --no-build-isolation -v -v --editable src
}}}
-Line 44:
+Line 70:
-To check whether there are known issues with Conda:
+= More information =
-Line 46:
+Line 72:
- * https://trac.sagemath.org/query?order=id&desc=1&summary=~conda

== Windows ==

There is likely not going to be a working package in the near future, see https://groups.google.com/d/msg/sage-devel/wyaV8x5qolI/jVS4DKBvCAAJ.
+see https://trac.sagemath.org/wiki/Distribution#CondaAnacondaMinicondaCondaForge

Diff for "Conda"

Setting Up

Conda for Sage Developers

More information