conda prefers pypy3.8 over CPython 3.8 on aarch64 by default?

[leofang]

Solution to issue cannot be found in the documentation.

• I checked the documentation.

Issue

It seems pypy instead of CPython is the default, despite pypy is not asked for:

$ conda create -n my_env python=3.8   
Collecting package metadata (current_repodata.json): done
Solving environment: done


==> WARNING: A newer version of conda exists. <==
  current version: 23.3.1
  latest version: 23.5.0

Please update conda by running

    $ conda update -n base -c conda-forge conda

Or to minimize the number of packages updated during conda update use

     conda install conda=23.5.0



## Package Plan ##

...

The following NEW packages will be INSTALLED:

  _openmp_mutex      conda-forge/linux-aarch64::_openmp_mutex-4.5-2_gnu 
  bzip2              conda-forge/linux-aarch64::bzip2-1.0.8-hf897c2e_4 
  ca-certificates    conda-forge/linux-aarch64::ca-certificates-2023.5.7-hcefe29a_0 
  expat              conda-forge/linux-aarch64::expat-2.5.0-hd600fc2_1 
  gdbm               conda-forge/linux-aarch64::gdbm-1.18-h0a1914f_2 
  libexpat           conda-forge/linux-aarch64::libexpat-2.5.0-hd600fc2_1 
  libffi             conda-forge/linux-aarch64::libffi-3.4.2-h3557bc0_5 
  libgcc-ng          conda-forge/linux-aarch64::libgcc-ng-13.1.0-h2b4548d_0 
  libgomp            conda-forge/linux-aarch64::libgomp-13.1.0-h2b4548d_0 
  libsqlite          conda-forge/linux-aarch64::libsqlite-3.42.0-h194ca79_0 
  libzlib            conda-forge/linux-aarch64::libzlib-1.2.13-h31becfc_5 
  ncurses            conda-forge/linux-aarch64::ncurses-6.4-h2e1726e_0 
  openssl            conda-forge/linux-aarch64::openssl-3.1.1-h31becfc_1 
  pip                conda-forge/noarch::pip-23.1.2-pyhd8ed1ab_0 
  pypy3.8            conda-forge/linux-aarch64::pypy3.8-7.3.11-hf9a8208_0 
  python             conda-forge/linux-aarch64::python-3.8.16-0_73_pypy 
  python_abi         conda-forge/linux-aarch64::python_abi-3.8-3_pypy38_pp73 
  readline           conda-forge/linux-aarch64::readline-8.2-h8fc344f_1 
  setuptools         conda-forge/noarch::setuptools-67.7.2-pyhd8ed1ab_0 
  sqlite             conda-forge/linux-aarch64::sqlite-3.42.0-h3b3482f_0 
  tk                 conda-forge/linux-aarch64::tk-8.6.12-hd8af866_0 
  wheel              conda-forge/noarch::wheel-0.40.0-pyhd8ed1ab_0 
  xz                 conda-forge/linux-aarch64::xz-5.2.6-h9cdd2b7_0 
  zlib               conda-forge/linux-aarch64::zlib-1.2.13-h31becfc_5 


Proceed ([y]/n)?

Installed packages

n/a

Environment info

$ conda info

     active environment : base
    active env location : **********
            shell level : 1
       user config file : **********
 populated config files : **********
          conda version : 23.3.1
    conda-build version : not installed
         python version : 3.10.10.final.0
       virtual packages : __archspec=1=aarch64
                          __cuda=12.0=0
                          __glibc=2.31=0
                          __linux=5.4.0=0
                          __unix=0=0
       base environment : **********  (writable)
      conda av data dir : **********
  conda av metadata url : None
           channel URLs : https://conda.anaconda.org/conda-forge/linux-aarch64
                          https://conda.anaconda.org/conda-forge/noarch
          package cache : **********
                          **********
       envs directories : **********
                          **********
               platform : linux-aarch64
             user-agent : conda/23.3.1 requests/2.28.2 CPython/3.10.10 Linux/5.4.0-150-generic ubuntu/20.04.6 glibc/2.31
                UID:GID : 43505:30
             netrc file : None
           offline mode : False

[leofang]

It seems mamba is doing fine, only conda is problematic.