Made by Mike_Zhang

Intro

配置Conda环境常常是头疼的一个过程。更头疼的是，当你需要在不同的机器上配置相同的环境时，你需要重新安装这好不容易配置好的环境。本文将介绍如何将Conda环境无痛迁移到另一台机器上。

1. Conda Environment Transfer

1.1 Method 1 - Transfer the Entire Environment Folder

1.1.1 Step1: Pack the Environment

On source machine:

# 1. [Optional] Go to the home directory
cd ~ 

# 2. Activate the environment you want to transfer
conda activate my_env 

# 3. Pack the environment
conda pack -n my_env -o my_env.tar.gz

1.1.1.1 Error Handling: Cannot pack an environment with editable packages

Error:

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CondaPackError: Cannot pack an environment with editable packages
installed (e.g. from `python setup.py develop` or
 `pip install -e`). Editable packages found:

Solution: Add --ignore-editable-packages

1	`conda pack -n my_env -o my_env.tar.gz --ignore-editable-packages`

1.1.1.2 Error Handling: Files managed by conda were found to have been deleted/overwritten

Error:

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CondaPackError: 
Files managed by conda were found to have been deleted/overwritten in the
following packages:

Solution: Add --ignore-missing-files

1	`conda pack -n my_env -o my_env.tar.gz --ignore-missing-files`

1.1.2 Step2: Transfer the Packed Environment

Move the my_env.tar.gz to the /home/xxx/anaconda3/envs on the target machine

Where /home/xxx/anaconda3/envs is the path to the Conda envs folder on the target machine. Modify it according to your machine.

1.1.3 Step3: Unpack and Activate the Environment

On the target machine:

# 1. Go to the envs folder
cd /home/xxx/anaconda3/envs

# 2. Create a new folder for the env
mkdir -p my_env

# 3. Unpack the environment
tar -xzf my_env.tar.gz -C my_env

# 4. Activate the environment
conda activate my_env

1.2 Method 2 - Export and Import Environment via file

1.2.1 Step1: Export the Environment

On the source machine:

# 1.[Optional] Go to the home directory
cd ~

# 2. Activate the environment you want to transfer
conda activate my_env

# 3. Export the environment
conda env export > my_env_environment.yml

1.2.2 Step2: Transfer the Environment File

Move the my_env_environment.yml to the target machine

1.2.3 Step3: Create and Activate the Environment

On the target machine:

# 1. Go to the folder where the environment file is
cd path/to/my_env_environment.yml

# 2. Create the environment
conda env create -f my_env_environment.yml

# 3. Activate the environment
conda activate my_env