在 conda 环境（运行 Python 3.8）中安装 rpy2 3.3.2 的最佳方法是什么？

Question

I tried installing the latest version of rpy2 on a Mac in a conda environment by going into environments within the Conda Navigator, clicking on my environment, and searching for rpy2. However, this latest version does not show up.

I also tried installing through the terminal by using:

pip install rpy2

This generates the following error message:

Could not fetch URL https://pypi.python.org/simple/rpy2/: There was a problem confirming  the ssl certificate: [SSL: TLSV1_ALERT_PROTOCOL_VERSION] tlsv1 alert protocol version (_ssl.c:661) - skipping
Could not find a version that satisfies the requirement rpy2 (from versions: )
No matching distribution found for rpy2

I also tried:

conda install rpy2==3.3.2 

But got the following error:

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:

  - rpy2==3.3.2

Current channels:

  - https://repo.anaconda.com/pkgs/main/osx-64
  - https://repo.anaconda.com/pkgs/main/noarch
  - https://repo.anaconda.com/pkgs/r/osx-64
  - https://repo.anaconda.com/pkgs/r/noarch
  - https://conda.anaconda.org/conda-forge/osx-64
  - https://conda.anaconda.org/conda-forge/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.

What is the best way to install this package and make it available within an anaconda environment?

Answer 1

I had the same and this solved it:

pip3 install rpy2