Anaconda uses (a): create / delete / copy environments

1. Create / Delete environment

# 查看环境
conda info --e

# 创建环境（xxx 表示环境名称）
conda create -n xxx python=2.7

# 激活环境
source activate xxx

# 切换到base环境
activate

# 退出环境
source deactivate xxx

# 删除环境
conda remove -n xxx --all
 
# 安装包
conda install package
pip install package

# 查看当前环境已安装包
conda list

# 更新包
conda update package
# 更新环境xxx的名为packagename的包
conda update -n [xxx] [packagename] 

# 移除包
conda remove package
pip uninstall package

# 删除learn环境及下属所有包
conda remove -n xxx --all

2. Copy the environment

2.1. The machine copy

conda create -n new_env --clone old_env

2.2. Non-native replication

# 导出环境
conda env export > environment.yaml

# 在新的机器上安装环境
conda env create -f environment.yaml

Use conda env exportcommand to export a yaml file format, the file name records the environment, the software source address, and a list of installed packages, in order to achieve reproducible installation environment.

Note: yaml transplant environment can only be installed with the conda installcommand to install the package, if a useful pip installcommand to install the package, you need pip freezeto generate txt file, the same principles and yaml file.

# 导出环境
pip freeze > requirements.txt

# 在新的机器上安装环境
pip install -r requirements.txt

If you want to migrate to another computer without networking, Anaconda if the same version, can directly evnscopy the file corresponding to the file to a location environment.