CONDA common commands: install, update, create, activate, close, view, uninstall, delete, clean, rename, change source, problem

Hello everyone , I meet you again , I'm your friend, Quan Jun .

List of articles

• download
• install
• upgrade
• uninstall Anaconda Software
• conda The environment uses basic commands
• Check the installable version information of the specified package
• to update , Uninstall the installation package ：
• Delete virtual environment
• clear （conda Slimming ）
• Copy / rename / Delete env Environmental Science
• conda Auto on / Turn off activation
• Conda Install local package
• solve conda/pip install Slow download speed
  • conda Data source management
  • pip Data source management
  • pip Installation package management
• pip and conda Batch export 、 Installation of components (requirements.txt)
• Common software installation
• problem
  • 1:failed ERROR conda.core.link:_execute(502):
  • 2.anaconda or conda Not an internal command
  • 3.conda Create an environment with errors ：NotWritableError: The current user does not have write permissions to a required path.
  • 4.conda Create an environment with errors ：Collecting package metadata (current_repodata.json): failed ProxyError: Conda cannot proceed due to an error in your proxy configuration.

download

Go directly to anaconda Download the installation file on the official website , Search the specific website by yourself . Provided on the official website linux edition ,windows edition ,mac edition . At the same time provide Anaconda The full version and miniconda Minimum version ( Without software interface , Only command line execution is supported ), Recommended for novices Anaconda edition , It is recommended to use miniconda edition , It takes up less storage space , It feels the same when used .

install

linux Environmental Science

bash Anaconda3-2019.07-Linux-x86_64.sh
#yes+ enter  
# And then restart terminal

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window Environmental Science ： Double click Install directly exe file , Then install according to the installation wizard

upgrade

upgrade Anaconda You need to upgrade first conda

conda update conda          # Basic upgrade 
conda update anaconda       # Big upgrade 
conda update anaconda-navigator    //update Latest version anaconda-navigator   

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uninstall Anaconda Software

because Anaconda The installation files of are contained in a directory , So delete the directory directly . Delete the whole Anaconda Catalog ：

Computer control panel -> Program and Application -> uninstall //windows

perhaps

find C:\ProgramData\Anaconda3\Uninstall-Anaconda3.exe Perform the uninstall

rm -rf anaconda    //ubuntu

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Last , It is suggested to clean up .bashrc Medium Anaconda route .

conda The environment uses basic commands

conda update -n base conda        #update Latest version conda
conda create -n xxxx python=3.5   # establish python3.5 Of xxxx A virtual environment 
conda activate xxxx               # Turn on xxxx Environmental Science 
conda deactivate                  # Shut down the environment 
conda env list                    # Show all virtual environments 
conda info --envs                 # Show all virtual environments 

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Check the installable version information of the specified package

Reference resources ：https://blog.csdn.net/qq_35203425/article/details/79965389 see tensorflow Versions ：（ Check it out and you'll find a lot of TensorFlow Source , But you can't just choose , Select to use the find command to locate ）

anaconda search -t conda tensorflow  

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Check the installable version information of the specified package

anaconda show <USER/PACKAGE>  

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View specified anaconda/tensorflow Version information

anaconda show tensorflow

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The output will provide a download address , Use the following command to specify the installation of 1.8.0 edition tensorflow

conda install --channel https://conda.anaconda.org/anaconda tensorflow=1.8.0 

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to update , Uninstall the installation package ：

conda list         # View installed packages 
conda list  -n xxx       # Specify view xxx Installed in virtual environment package
conda update xxx   # to update xxx Package 
conda uninstall xxx   # uninstall xxx Package 

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Delete virtual environment

conda remove -n xxxx --all   // establish xxxx A virtual environment 

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clear （conda Slimming ）

conda clean It can be done easily ！ First step ： adopt conda clean -p To delete some useless bags , This command will check which packages are not hard dependent elsewhere in the package cache , And delete them . The second step ： adopt conda clean -t Can be deleted conda Preserved tar package .

conda clean -p      // Delete useless bags 
conda clean -t      // Delete tar package 
conda clean -y --all // Remove all installation packages and cache

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Reference resources ：https://blog.csdn.net/menc15/article/details/71477949

Copy / rename / Delete env Environmental Science

Conda There is no function to rename the environment , To achieve this basic need , Only through stupid clone - Delete The process of . Remember not to be direct mv Move the environment folder to rename , Can lead to a series of unimaginable mistakes !

// clone oldname The environment is newname Environmental Science 
conda create --name newname --clone oldname 
// Delete the old environment completely 
conda remove --name oldname --all      

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Be careful ： Must be in base Carry out the above operations under the environment , Otherwise, there will be all kinds of inexplicable problems .

conda Auto on / Turn off activation

Reference resources ：https://www.cnblogs.com/clemente/p/11231539.html

conda activate   # Default activation base Environmental Science 
conda activate xxx  # Activate xxx Environmental Science 
conda deactivate # Shut down the current environment 
conda config --set auto_activate_base false  # Turn off auto activation 
conda config --set auto_activate_base true  # Turn off auto activation 

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Conda Install local package

Sometimes conda or pip Source download speed is too slow ,install a During the process, the connection will be interrupted, resulting in incomplete download of compressed package , here , We can use the browser and other tools to download the specified package and then conda or pip For local installation

#pip  Install local package 
pip install   ～/Downloads/a.whl
#conda  Install local package 
conda install --use-local  ~/Downloads/a.tar.bz2

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solve conda/pip install Slow download speed

conda Data source management

# Show current conda What are the data sources of 
conda config --show channels
# Add data sources ： for example ,  Add Tsinghua anaconda Mirror image ：
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
conda config --set show_channel_urls yes
# Delete data source 
conda config --remove channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

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Make a note of

# My  ~/.condarc
auto_activate_base: false
channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/menpo/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
show_channel_urls: true

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pip Data source management

# Show current pip What are the data sources of 
pip config list
pip config list --[user|global] #  List users | Global settings 
pip config get global.index-url #  Get this key Corresponding value  Such as ：https://mirrors.aliyun.com/pypi/simple/

#  add to 
pip config set key value
# Add data sources ： for example ,  add to USTC The source of CUHK ：
pip config set global.index-url https://mirrors.ustc.edu.cn/pypi/web/simple
# Add global use of this data source 
pip config set global.trusted-host https://mirrors.ustc.edu.cn/pypi/web/simple

#  Delete 
pip config unset key
#  for example 
conda config --remove channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

# Search for 
pip search flask  # Search element flask Installation package 

#  upgrade pip
pip install pip -U

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Make a note of pip Domestic source

 Alibaba cloud                     http://mirrors.aliyun.com/pypi/simple/
 University of science and technology of China          https://pypi.mirrors.ustc.edu.cn/simple/ 
 douban (douban)         http://pypi.douban.com/simple/ 
 Tsinghua University                 https://pypi.tuna.tsinghua.edu.cn/simple/
 University of science and technology of China   http://pypi.mirrors.ustc.edu.cn/simple/

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pip Installation package management

pip list # List currently cached packages 
pip purge # Clear cache 
pip remove # Delete the corresponding cache 
pip help # help 
pip install xxx # install xxx package 
pip uninstall xxx # Delete xxx package 
pip show xxx # Show the specified installed xxx package 
pip check xxx # Check xxx Whether the package dependency is appropriate 

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pip and conda Batch export 、 Installation of components (requirements.txt)

Reference resources

Common software installation

Reference resources ：conda Common software installation in environment

problem

1:failed ERROR conda.core.link:_execute(502):

conda install  The following error message appears when the software ：
Preparing transaction: done
Verifying transaction: done
Executing transaction: 
failed ERROR conda.core.link:_execute(502):

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resolvent ： Often, the permission is not enough , Need to run as Administrator Anaconda prompt Installation

2.anaconda or conda Not an internal command

resolvent ：https://zhuanlan.zhihu.com/p/32446675

Add the environment variables in the above figure

jupyter notebook Default working directory settings Reference resources ：https://blog.csdn.net/liwei1205/article/details/78818568

1） stay Anaconda Prompt Enter the following command in the terminal , View your notebook Where is the configuration file ：

jupyter notebook --generate-config
# Will generate files C:\Users\ user \.jupyter\jupyter_notebook_config.py

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2） open jupyter_notebook_config.py File by searching for keywords ：c.NotebookApp.notebook_dir, Revised as follows

c.NotebookApp.notebook_dir = 'E:\\tf_models'     // Modify to custom folder 

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3） And then restart notebook The server will do

** notes ：** Other methods direct commands to the specified directory ,Anaconda Prompt The terminal is in the middle of transmission ：jupyter notebook Directory address

3.conda Create an environment with errors ：NotWritableError: The current user does not have write permissions to a required path.

The main reason for the problem ： The user did not .conda Folder read and write permissions , The reason is due to the installation conda Administrator privileges are used .

sudo chown -R xxx:xxx .conda    #xxx For your user name / Group 

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4.conda Create an environment with errors ：Collecting package metadata (current_repodata.json): failed ProxyError: Conda cannot proceed due to an error in your proxy configuration.

reason ： Mainly conda install xxx when , Use Ctrl+C Forcibly interrupt the installation xxx Software , And then modified PC Network connection mode ( Proxy connection is changed to direct connection )

env | grep -i "_PROXY"
# You can see the original proxy connection method 
# resolvent ：
#  Close the current terminal , Reopen the new terminal , Then the problem was solved 

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