This page shows how to install the arch-py package in a conda environment. The list of labels includes win-64, which makes me think that the same command should work also on Windows, just like the installation of numpy works.
I tried as suggested, but it fails:
(myarch) C:\Windows\System32>conda install -c conda-forge arch-py
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
PackagesNotFoundError: The following packages are not available from current channels:
- arch-py
Current channels:
- https://conda.anaconda.org/conda-forge/win-32
- https://conda.anaconda.org/conda-forge/noarch
- https://repo.anaconda.com/pkgs/main/win-32
- https://repo.anaconda.com/pkgs/main/noarch
- https://repo.anaconda.com/pkgs/r/win-32
- https://repo.anaconda.com/pkgs/r/noarch
- https://repo.anaconda.com/pkgs/msys2/win-32
- https://repo.anaconda.com/pkgs/msys2/noarch
To search for alternate channels that may provide the conda package you're
looking for, navigate to
https://anaconda.org
and use the search bar at the top of the page.
I also tried by creating the environment and installing the package at the same time, but I got the same failure:
(base) C:\Windows\System32>conda create -c conda-forge -n myarch python numpy arch-py
Collecting package metadata (current_repodata.json): done
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: failed
PackagesNotFoundError: The following packages are not available from current channels:
- arch-py
Current channels:
- https://conda.anaconda.org/conda-forge/win-32
- https://conda.anaconda.org/conda-forge/noarch
- https://repo.anaconda.com/pkgs/main/win-32
- https://repo.anaconda.com/pkgs/main/noarch
- https://repo.anaconda.com/pkgs/r/win-32
- https://repo.anaconda.com/pkgs/r/noarch
- https://repo.anaconda.com/pkgs/msys2/win-32
- https://repo.anaconda.com/pkgs/msys2/noarch
To search for alternate channels that may provide the conda package you're
looking for, navigate to
https://anaconda.org
and use the search bar at the top of the page.
As @merv suggested, the problem was caused by the original Anaconda installation being 32 bit. I have updated the title to help any future Anaconda 32 bit users.
By following the steps listed in this answer, I was able to solve this problem:
conda create —n arch-py
conda activate arch-py
conda config --env --set subdir win-64
conda install python=3.10
conda install numpy
conda install arch-py