06Python环境配置

背景

要开发,就需要进行环境配置.很多系统都内置了Python环境.但是系统的环境有些时候并不能瞒住我们的开发需求.比如py2和py3的切换,和同版本的切换.

下面我我介绍的是Anacoda3,当备注了.

开始配置

1. 下载地址==> 官网下载

2. 执行运行安装

3. 配置环境变量

• windows ==>

    此电脑->右键选择属性->高级系统设置->环境变量->系统变量->path

• Max/Linux ==>

#Anaconda Python
 export CONDA_HOME=/usr/local/anaconda3
 export PATH=$CONDA_HOME/bin:$PATH

打开终端,输入命令 ‘conda’,如果有显示则配置成功.

简单介绍一下

安装

conda install opencv //
conda install -c conda-forge opencv //通过conda-forge渠道安装

重要是的切换版本

//创建版本python3
conda create -n py3 python=3
conda create -n py2 python=2
//切换版本
source activate py3 //此时的环境就是python3了

查看安装的库

conda list

信息

$ conda info
//如下
platform : osx-64
          conda version : 4.3.30
       conda is private : False
      conda-env version : 4.3.30
    conda-build version : not installed
         python version : 3.6.1.final.0
       requests version : 2.14.2
       root environment : /usr/local/anaconda3  (writable)
    default environment : /usr/local/anaconda3
       envs directories : /usr/local/anaconda3/envs
                          /Users/silen/.conda/envs
          package cache : /usr/local/anaconda3/pkgs
                          /Users/silen/.conda/pkgs
           channel URLs : https://conda.anaconda.org/mine/osx-64
                          https://conda.anaconda.org/mine/noarch
                          https://repo.continuum.io/pkgs/main/osx-64
                          https://repo.continuum.io/pkgs/main/noarch
                          https://repo.continuum.io/pkgs/free/osx-64
                          https://repo.continuum.io/pkgs/free/noarch
                          https://repo.continuum.io/pkgs/r/osx-64
                          https://repo.continuum.io/pkgs/r/noarch
                          https://repo.continuum.io/pkgs/pro/osx-64
                          https://repo.continuum.io/pkgs/pro/noarch
            config file : /Users/silen/.condarc
             netrc file : None
           offline mode : False
             user-agent : conda/4.3.30 requests/2.14.2 CPython/3.6.1 Darwin/16.7.0 OSX/10.12.6
                UID:GID : 501:20

还有就是一些常规的帮助,更新,卸载,清理.

最后一句

• 清华镜像
  https://mirrors.tuna.tsinghua.edu.cn/help/anaconda/