在anaconda上执行如下命令，想创建python3.7的环境
conda create -n myenv python=3.7
发现无法创建
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=3.7
Current channels:
......
发现对于Apple Silicon，python没有低于3.7以下的版本。因此直接换成3.8的版本...
具体可以参考github说明