现象
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:
- python=2.7
Current channels:
- https://repo.anaconda.com/pkgs/main/osx-arm64
- https://repo.anaconda.com/pkgs/main/noarch
- https://repo.anaconda.com/pkgs/r/osx-arm64
- https://repo.anaconda.com/pkgs/r/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.
原因定位
- python 2 官方已经停止维护与更新。
- 官方仓库中已没有python2相关包
- conda默认channel检索不到python2.7导致
解决方案
- 从anaconda2的配置中,查找到可用channel:
https://repo.continuum.io/pkgs/free/osx-64
- 指定channel url更新环境即可
conda create -c 'https://repo.continuum.io/pkgs/free/osx-64' -n py2 python=2.7