How to install and use Anaconda for centos7

Check the conda version Upgrade the conda environment management of the current version List all the environments. Install a new Python environment of a different version. Copy an environment. Anaconda supports import and export to facilitate migration of imported environment information, that is, to create a new environment based on the configuration file: Remove the environment Activate the environment, use Disable an active environment, Use Package Management View installed packages Install packages to the specified environment Install a package from Anaconda.org install packages by using the PIP command Conda Configuration Add the image source View the current image source Delete the image source Set display the source URL during installation, View the conda configuration file. Other precautions The base that appears before the command line after conda is installed. Cancel the base environment that automatically activates Conda every time you start

Anaconda is introduced

Anaconda refers to an open source distribution of Python that contains more than 180 science packages and their dependencies, including Conda, Python, and others. Because of the large number of science packages included, Anaconda has a larger download file, and the smaller distribution (conda and Python only) of Miniconda can also be used if you only need certain packages or if you need to save bandwidth or storage space.


Anaconda is cross-platform, available for Windows, MacOS, and Linux.

CentOS 7 Install Anaconda3

1. Run the following command to fetch the script locally (the file name may vary depending on the version) :

   wget https://repo.anaconda.com/archive/Anaconda3-2020.02-Linux-x86_64.sh
   
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2. Run bash anaconda3-5.3.1-linux-x86_64. sh to install Anaconda

3. ENTER the installation program, prompting “ENTER” to continue:

   Please, press ENTER  to continue
   
   >>> ENTER
   
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4. Type Yes to confirm acceptance of the license agreement

   Do you accept the license terms? [yes|no]
   
   [no] > > >yes
   
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5. Confirm the installation position of Anaconda and change it with or without change

   Anaconda3 will now be installed into this location:
   
   /root/anaconda3
   
   
   
     - Press ENTER to confirm the location
   
     - Press CTRL-C to abort the installation
   
     - Or specify a different location below
   
   
   
   [/root/anaconda3] >>> /opt/anaconda3
   
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   The installation location can be specified during the installation script execution. For example, to specify the installation location to the /opt/anaconda3 directory, you can modify the execution content as follows: Bash bash anaconda3-5.3.1-linux-x86_64. sh -p /opt/ Anaconda3

6. After the installation is complete, a message appears asking whether to initialize Anaconda3 in the user’s.bashrc file.

   Do you wish the installer to initialize Anaconda3
   
   by running conda init? [yes|no]
   
   [no] > > >yes
   
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7. Bashrc: source ~/.bashrc

Supplement:

Add the contents of the installation script to the. Bashrc file to /etc/bashrc. It looks something like this, and then you execute source /etc/bashrc

# added by Anaconda3 5.3.1 installer

# >>> conda init >>>

#!!!!! Contents within this block are managed by 'conda init' !!

__conda_setup="$(CONDA_REPORT_ERRORS=false '/opt/anaconda3/bin/conda' shell.bash hook 2> /dev/null)"

if [ $? -eq 0 ]; then

    \eval "$__conda_setup"

else

    if [ -f "/opt/anaconda3/etc/profile.d/conda.sh" ]; then

        . "/opt/anaconda3/etc/profile.d/conda.sh"

        CONDA_CHANGEPS1=false conda activate base

    else

        \export PATH="/opt/anaconda3/bin:$PATH"

    fi

fi

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This section describes how to use the conda command

Help directory

conda create -h

Check the Conda version

conda --version

Upgrade the current version of Conda

conda update conda

Environmental management

List all the environments

conda info -e

conda env list

Install a new python environment with a different version

Conda create --name py27 python=2.7

Copy an environment

To replicate an environment by cloning. Here we will clone Snowfllakes to create a replica called Flowers. conda create -n flowers –clone snowflakes

Create a new environment

conda create --name busind

Export environment, Anaconda supports import and export to facilitate migration

conda env export > environment.yaml

Import environment information, that is, create a new environment based on the configuration file:

conda env create -f environment.yaml

Remove the environment

conda remove -n py274 --all

Activate to enter the environment, use

conda activate newname

Deactivate an active environment, please use

conda deactivate

Package management

View the installed package

conda list

Installs packages to the specified environment

conda install --name newName beautifulsoup4

Install a package from Anaconda.org

Conda install--channel https://conda.anaconda. ort/pandas

Install packages through the PIP command

conda activate bunnies

pip install see

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Conda configuration

Adding a Mirror Source

conda config --add channels https://pypi.tuna.tsinghua.edu.cn/simple

View the current mirror source

conda config --show-sources

Deleting a Mirror Source

conda config --remove channels https://pypi.tuna.tsinghua.edu.cn/simple

Set installation to display the source URL (no)

conda config --set show_channel_urls yes

View all Settings of the source, including the link, show_channel_urls value:

conda config --show

View the Conda configuration file

cat ~/.condarc

Other Matters needing attention

After conda is installed, delete the base environment that automatically activates Conda each time it is started

• Methods a

  • Run the conda deactivate command to exit the base environment and return to the automatic environment
  • conda deactivate

• Method 2

  • This is done by setting the auto_activate_base parameter to false:
    
    conda config --set auto_activate_base false
  • Use the following statement to restore base if you want to keep it
    
    conda config --set auto_activate_base true