基于Conda完成创建多版本python环境

基于Conda完成创建多版本python环境

1. 通过cmd打开conda环境

代码语言：javascript复制

d:ProgramDataAnaconda3Scriptsactivate

1. 创建python3.7的环境

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conda create -n py3.7 python=3.7

产生错误

Collecting package metadata (repodata.json): failed UnavailableInvalidChannel: The channel is not accessible or is invalid. channel name: pypi/simple channel url: http://mirrors.aliyun.com/pypi/simple error code: 404 You will need to adjust your conda configuration to proceed. Use conda config --show channels to view your configuration’s current state, and use conda config --show-sources to view config file locations.

1. 解决UnavailableInvalidChannel错误 按照提示输出channels和sources

代码语言：javascript复制

(base) E:vscodezhaopin>conda config --show channels
channels:
  - http://mirrors.aliyun.com/pypi/simple/

(base) E:vscodezhaopin>conda config --show-sources
==> C:UsersDELL.condarc <==
ssl_verify: True
channels:
  - http://mirrors.aliyun.com/pypi/simple/
show_channel_urls: True

移除指定的案例镜像

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(base) E:vscodezhaopin>conda config --remove-key channels

(base) E:vscodezhaopin>conda config --show-sources
==> C:UsersDELL.condarc <==
ssl_verify: True
show_channel_urls: True


(base) E:vscodezhaopin>conda config --show channels
channels:
  - defaults

1. 重新创建python3.7环境

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conda create -n py3.7 python=3.7.0

1. 激活python3.7的环境

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conda activate py3.7

1. 查看存在的python版本

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conda env list

python channel conda config 镜像

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