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Optimize conda settings and improve the performance of Python programs

Feb 20, 2024 am 10:36 AM
conda Optimization python program Mirror source Run efficiently pip installation python package

Optimize conda settings and improve the performance of Python programs

Optimize conda configuration and run Python programs efficiently

When developing Python, we often use conda to manage the Python environment. conda is an open source package manager and environment manager that can help us install, manage and upgrade the required Python packages more easily. However, if we do not optimize conda configuration, it may cause the Python program to run inefficiently, affecting development efficiency and user experience. This article will introduce how to optimize conda configuration to achieve the purpose of running Python programs efficiently.

  1. Use Tsinghua University mirror source

conda’s default official mirror source is often slower, especially when accessed domestically. In order to speed up the download speed, we can configure the Tsinghua University mirror source. Open the terminal and enter the following command:

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
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In this way, conda will use the Tsinghua University mirror source to download and update the package, improving the download speed.

  1. Use domestic mirror source to update conda

conda itself also needs to be upgraded from time to time to maintain stability and functional improvements. For domestic users, using domestic mirror sources to update conda can obtain the latest version faster. Enter the following command in the terminal:

conda update conda
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  1. Create an independent Python environment

Creating an independent Python environment for each project can help us isolate libraries between different projects version to avoid version conflicts. Enter the following command in the terminal:

conda create -n myenv python=3.7
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where, myenv is the environment name, and python=3.7 specifies the Python version. After creating the environment, use the following command to activate the environment:

conda activate myenv
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In this way, we can install the required packages in this environment without affecting other environments.

  1. Use pip to install the required packages

Although conda can install, manage and upgrade Python packages, in some cases, it may be more convenient to use pip. In the activated conda environment, install pip through the following command:

conda install pip
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Then you can use pip to install the required packages. The command is similar to:

pip install package_name
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  1. Configure the conda virtual environment cache

Conda will cache the downloaded packages in the "~/.conda/pkgs" directory by default, which will occupy a lot of hard disk space. We can modify the cache directory by configuring the environment variable CONDA_PKGS_DIRS. Enter the following command in the terminal:

nano ~/.bashrc
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Add the following content in the .bashrc file, save and exit:

export CONDA_PKGS_DIRS="/path/to/new/cache/folder"
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Modify "/path/to/new/cache/folder" as you expect The cache directory path.

  1. Install and use mamba

mamba is a fast alternative to conda package manager, which can provide faster package management speed. You can use the following command to install mamba:

conda install mamba -n base -c conda-forge
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After the installation is complete, you can use mamba to replace conda to execute some commands, such as installing packages, updating the environment, etc. The functions of mamba are basically the same as conda, but it is faster and more efficient.

Through the above optimization measures, we can improve the efficiency of conda and enable Python programs to run more efficiently. At the same time, configuring an independent Python environment can avoid version conflicts and ensure the stability of the project. I hope this article will be helpful to your Python development work!

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